Recovering data from a phone's SD card. Recovering lost data on a memory card

The most common reasons for losing the contents of an SD card are: accidental formatting, software failure and mechanical damage to the media. Knowing the root cause of the problem, you can choose the most appropriate recovery method that would allow you to recover lost data with maximum efficiency.

Procedure for recovering data from an SD card

If you find any problems with the functioning of the flash drive (it is not recognized by the gadget or PC, its volume is displayed incorrectly, etc.), you need to copy the files as quickly as possible, format the device, scan it with an anti-virus program and diagnose it for errors.

If you cannot access the contents of the memory card, you should try to recover the lost files yourself. To do this you can:

• use special software;
• perform hardware intervention.

The first method of recovering files and folders is simpler, so anyone can do it. With its help, you can with a high probability return data deleted after formatting or software failure.

To perform resuscitation at home you need to have on hand:

• PC with at least Windows XP operating system installed;
• a device for reading an SD card (card reader) or a corresponding connector on a computer;
• connected internet;
• special program.

The procedure for restoring the contents of a flash drive after an unplanned formatting or failure will be as follows:

1. A resuscitation program is installed. You can download it on the Internet from free resources or purchase a licensed version. For private use, free software is sufficient.
2. The device in which the SD card is installed is turned off, then the media is removed and connected to the computer.
3. The installed program is launched, which searches for files deleted after formatting or failure and saves them on the PC.

Hardware intervention is performed when the SD card is mechanically damaged. In this case, the final result depends on the degree and nature of the damage. Repairing a storage device or restoring information from it is a complex procedure, so it is better to entrust it to a specialist.

Programs for resuscitation after data deletion

The success of restoring access to lost information directly depends on the software used. There are a huge number of resuscitation programs on the Internet that allow you to complete the task. The most effective ones are:

• Recovery-studio;
• R. Saver;
• PhotoRec.

Recovering files after formatting an SD card using R-studio

Recovering a damaged SD card

Recovering deleted files from a damaged flash drive is much more difficult, but with the right approach it is still possible. Each SD card is equipped with a microcontroller, the operation of which is controlled by a special program. If the media is removed from the slot incorrectly, it may fly off, causing the flash drive to stop working.

Read, how to fix a memory card and recover data from it(regardless of the card manufacturer and model), and about the reasons for card failure. Losing images or crashing a memory card containing important photos makes you feel lost forever? Or have you already had the bitter experience of losing important data due to a damaged SD memory card? In our article we will look at the answers to these questions and show how to repair a memory card and recover data from it, regardless of the reason for its failure.

Content

Introduction

Personal electronic computer devices are an integral part of the information flow management mechanism and are used daily in various industries. Their use makes it much easier for users to perform their business duties, process and store various information, create and exchange various projects, and these devices are also actively used for recreation and entertainment.

Personal desktop computers and laptops are widely used and are rightfully the most popular among other devices. Such successes were achieved largely due to the combination of characteristics of computer devices, firmly securing their leading position: ultra-fast processors and RAM elements, maximum data storage, instantaneous information processing speed, a high degree of device unification, multitasking, allowing you to solve a range of different tasks without reducing device performance, and overall high performance in general.

The main responsibility for managing, storing, processing and exchanging information is assigned to specialized software, which should take full advantage of the computer's maximum capabilities and have attractive and convenient functionality. The operating system is a leader in its field and fully complies with these conditions. "Windows", developed by the corporation "Microsoft". Possessing a user-friendly interface and the highest speed capabilities, it easily copes with any type of tasks that end users encounter in the course of their activities.

A separate type of computer devices, which, especially recently, have become extremely widespread, are mobile smartphones and communicators. The catalyst for extraordinary popularity was the creation and widespread dissemination of an international information computer network "Internet". Having noticeably smaller internal characteristics and offered capabilities, they achieve recognition due to high mobility and the variety of communication methods available to users with their help: mobile communications, instant text messages, video communication applications, access to social networks and other platforms for communication in networks "Internet", email messages, etc.

A separate element that has contributed to the increase in the popularity of smartphones is the ability to use them to create high-quality photographs and videos. Personal archive, instant photos for memory, pictures for sharing on social networks, funny videos and much more can be easily done with smartphones, especially since users always carry them with them. If it is necessary to capture high-quality photographs, professional high-resolution cameras are used, which, due to high competition between manufacturers and the use of the latest developments, have significantly decreased in cost and are freely available to every user for daily use.

Due to the fact that the volume of photographs is growing every day, and they are taken in high resolution, the internal memory capacity of the devices is not enough to store them, and the use of additional storage is required. In such cases, the main storage device for the user’s data is memory cards of various formats. Having low cost and significant internal capacity, memory cards are widely used. The most common of them is rightfully considered "SD" memory card.

However, like any computer device, a memory card is subject to various influences and can be damaged for various reasons. Next, we will look at the possible causes of damage to memory cards and suggest ways to restore the information stored on them.

Memory card "SD"(English) "Secure Digital Memory Card") is a miniature storage device designed for repeated recording, storage and reading of various digital information. The main place of its application are portable electronic devices: mobile smartphones, digital cameras, e-books, "GPS navigators", some types of game consoles, etc.

The card has a standard size of 24x32x2.1 mm, which allows it to have its own controller and a special area, directly memory chips responsible for recording and storing user data, the operating principle of which is implemented using flash memory (a special reprogrammable semiconductor technology) .

As development has progressed, the internal capacity of flash memory has changed, and today, it is available in sizes up to "128 TB". Memory cards have different information processing speeds, which are expressed in digital symbols on them. For a unified designation, a standard classification of card speed characteristics has been adopted, called "Speed ​​Class", which reflects the data writing speed.

Download the program from the manufacturer's official website and run the installation executable file. The installation wizard will launch, which in a simple step-by-step mode will help you install on your personal computer or laptop. Installing the program does not take much time and does not cause any difficulties, even for inexperienced users.

Once the installation process is complete, launch the program. will perform an initial analysis of the system and display in its window all installed and additionally connected disks and data storage devices.

The program interface is as similar as possible to a file explorer "Windows", thereby allowing everyone, even a novice user, to work with it. Find your memory card in the list of partitions and double-click on it. The program activates the launch of the File Recovery Wizard, which, in a step-by-step mode, will offer to set certain parameters before starting the file recovery process.

Place an indicator (dot) in a cell “Full analysis (searching for all possible information)”. In the activated section, leave the cells unchanged "FAT (USB media, digital cameras, Windows 9x)" And “Deep analysis (search by file contents)”. These settings will allow the program to restore the file system of the memory card and conduct signature analysis "SD" card and restore all the information on it, even that which was deleted many months ago.

After selecting the analysis type, click the button "Further" to start scanning the marked card. The entire process will take place in real time and users will be able to monitor its execution using a status indicator.

Wait for the analysis process to complete "SD" memory card and press the button "Ready" upon its completion. Depending on the degree of damage to the memory card, its capacity and other parameters, the analysis may take from several minutes to several hours.

The window will display a list of all found files and folders that were recovered by the program. When you click on each file, its contents will be displayed in a preview window so that users can familiarize themselves with the final result before saving the required files, and make sure that they are fully functional. Mark the required files and folders and click the button "Restore", presented in the form of a lifebuoy and located on the main menu panel.

The File Recovery Wizard will open a pop-up window in which users will need to indicate the appropriate method for saving the marked files in this particular case. The wizard offers a choice of using one of four methods: save data to any hard drive or external drive, write files to an optical storage medium "CD/DVD - disk", create a virtual "ISO - image" or download data using "FTP protocol". Place an indicator (dot) opposite the cell indicating the method you have chosen for saving files, and click the button "Further".

Depending on the chosen method, in the next window of the File Recovery Wizard, specify the necessary options for saving files, and click the button "Restore" to complete. For example, when choosing a method "Save to hard drive" You will need to set the save path and check or uncheck additional settings.

Now all your files are recovered and saved to the safe storage location you specified. Open the files and make sure they are completely intact. Then you can carry out the formatting procedure "SD" memory cards to troubleshoot possible problems using one of the previously described methods.

You can fully explore all the capabilities of the program, get acquainted with its capabilities and advantages on our video channel in the manual: “Recovering files from a memory card of a camera, phone, tablet, video camera, recorder”.

Conclusion

With the development of various types of computer devices, the number of types of information storage that users use to create, exchange and store their data has seriously increased. Lightweight and miniature memory cards are widely used and deservedly recognized by users, especially when creating photographs and images.

However, memory cards are not durable and can become unusable for various reasons, limiting the user's access to them or completely losing their data. Knowing some of the main signs that serve as a harbinger of a breakdown, as well as having knowledge of the reasons that caused damage to memory cards, users can, following a certain procedure, repair damaged cards and restore all the data stored on them.

It often happens that all the important information that is on the flash drive disappears due to some circumstances. All you can do is look at the empty folder and hold back your tears, because it will take many weeks to restore a huge amount of important work information. However, do not despair and write a letter of resignation, because you can recover data from an SD card or a regular USB drive.

Why does information disappear?

It would seem a primitive question. In fact, there are many more reasons for data disappearance than banal formatting.

• The flash card is infected with a virus. Very often, virus programs “eat up” information on the data storage or damage individual files. At best, they change the encoding of documents, which is why incomprehensible hieroglyphs are visible. To avoid this, you just need to have an antivirus on your computer and not give the media to just anyone.
• The memory card was not removed correctly. Safe removal was invented for a reason. With this function, the information is guaranteed to remain intact. If the flash drive is roughly pulled out of the connector, there is a chance that it may be damaged or stop working altogether.
• Formatting. The simplest and most common way to lose information. It’s also the most offensive, because the information disappeared due to one’s own stupidity.

There are many more reasons for data loss, but these are the most common.

What's really going on?

During deletion or formatting, files are permanently deleted and the space they occupied is freed up. You can easily verify this by going to properties. Actually this is not true.

A memory card, in essence, resembles a tray with many cells of a certain size into which information is placed. During deletion, information about the location of files and the weight they occupy is deleted from the memory card, which can be seen by going to properties. But physically the documents remain in their place. And, in fact, there is no deletion, since new documents are overwritten over old ones. This is why data recovery from SD card is possible.

The main thing is to fulfill one condition: under no circumstances should you write new information onto a formatted flash drive, because the files will be completely or partially overwritten, and it will no longer be possible to return them. If this condition is met, you need to use a special recovery program.

R.saver

A free utility for the countries of the former USSR (as the manufacturer himself writes), with which you can recover data from an SD card. The program is simple, and even a beginner will find it quite easy to understand. It works with FAT, NTFS and exFAT systems. Installing it is easy, just unzip and run the r.saver.exe file.

In the window that appears, we see a list of sections. Select the one on which you want to restore files. In the window that appears, select the desired folder and click “Scan”. In this case, the program will display confirmation of sector-by-sector scanning. It is necessary if the information has been formatted. In this case, click “Yes”. If it was simply deleted, a quick scan will suffice. You need to click "No". After scanning, we find the necessary damaged documents, right-click on them and select “Copy to...”. That's it, data recovery from the SD memory card is complete.

Recuva

Quite a powerful and completely free, easy-to-understand SD card data recovery program for those who are doing it for the first time. Downloads and installs without problems. The Quick Launch Wizard opens and, after several successive steps, the program itself scans the disk. But if you need to recover data on an Android SD card, click on advanced mode in the right corner.

Disk selection buttons will appear. Having selected the disk, click “Analyze” and wait for the scanning to finish. You can immediately notice that all files are divided into colors. Files marked in green are “excellent” in condition. They can be restored without problems. Yellow - “medium”, which is difficult to restore. Red ones are “lost” and cannot be restored. Select what you need, right-click on any file and select “Restore Selected”. We choose where to save, and data recovery from the SD card is complete.

PC Inspector File Recovery

Also a free utility that will recover data from an SD card after formatting and return lost information. Downloading and installing it is not difficult. After launch, you will need to select a language (by the way, Russian is present). Next, we are given an overview of all the functions and capabilities that this utility is capable of. After reviewing this information, we find ourselves in the program panel. Here you can see many different buttons and tabs, but in this case the most interesting is the top one.

Once there, select the “Logical Disk” section, where you need to click on the one you need to highlight. To start scanning, click on the green checkmark. We wait for the scanning to finish and see a list of lost documents. Mark the ones you need and right-click “Save to...”. Select the future location and click on the green checkmark. Now you can enjoy the restored data.

Hidden files

There is also a virus walking around the network that makes all files hidden, and the antivirus does not help. In this case, the files remain in place. You can verify this by looking at the properties. You can return files in the following ways:

What should I do so that data recovery from the SD card is not required?

It’s best not to take things to such an extreme and save time and a couple of million nerve cells. To do this, you just need to be a little more careful and remember simple recommendations:

• You must have an antivirus on your computer, because without it you can easily catch something. In addition, it is worth installing an extension in your browser that will show unwanted sites as a result of searches.
• Try not to give the flash drive to anyone, as the virus can be caught on someone’s computer.
• Always make a backup copy of your card.
• Watch where you click. Everyone has deleted a necessary file at least once by accident or stupidity. Therefore, you need to watch what you select and click.
• Before you go through the trouble of restoring, check your recycle bin. Perhaps the deleted document is there.
• Create a clear structure on the disk and keep information strictly in the appropriate folders. Individual folders are much easier to scan than the entire disk.

But it’s still very nice that data recovery from an SD card is possible.

Epilogue

Once again, it is worth emphasizing that if information has been erased, you should under no circumstances overwrite it with new information, as restoration will become impossible. It’s better to avoid losing it altogether by following simple recommendations.

Hover over

Secure Digital Memory Cards(SD, SDHC) are intended for use with digital photo and video cameras. Small dimensions, relatively high capacity and operating speed; as well as the low price and absolute compatibility with almost any device, made memory cards of this type a leader in use in both household and professional devices.

Problems with SD memory cards

• Formatting, deleting files. The solution to the problem is a few hours in the laboratory.
• Asks to format. It can indicate both a logical and hardware malfunction. The solution to the problem takes from several hours to several days. Most often - a day.
• Size 0 bytes. Hardware failure. Most often caused by damaged block translation due to poor condition of memory chips. Solved by reading the memory on the programmer and assembling the image. 90% of memory cards are restored the next day after access.
• Not determined. Hardware failure of the memory card (controller failure). It may be caused either by damage to the memory card controller itself (or its “piping” - voltage formers, matching devices) or to the memory chips. In the vast majority of cases, data can be recovered completely.

Equipment our laboratory allows you to recover data from any SD memory cards with any faults. On the official website of our laboratory we only post real photos and examples successfully completed works: we have nothing to hide, we do not keep secrets from our customers. Fast, inexpensive and high quality: You will receive this entire set from us!

All orders in our laboratory they go to work straightaway after placing an order: we do not increase the price for urgency and do not create an artificial queue. Payment work is carried out only after checking the completeness of the recovered data.

Recovering data from an SD memory card using an example
SDHC Transcend 16 Gb class 10

Condition upon admission to the laboratory: is not detected by either the camera or the computer.

Inspecting the memory card: The memory card case has been opened, there are two stickers with service numbers.

Diagnosis: hardware failure of the memory card (controller failure).

expert opinion: data can be restored within 24 hours

Before entering the laboratory diagnostic procedures were carried out with the memory card, however, it was returned to the customer with the wording “It won’t be possible to do this due to lack of equipment”. The INTER laboratory has all the necessary equipment for data recovery from memory cards of any configuration, including monolithic ones. This is one of the many reasons why you should go to a lab for data recovery rather than a basement service that repairs “all computers, laptops and phones.”

Controller malfunction is the general name for all hardware-related faults in flash drives, the history of which begins with short-lived controllers and inexperienced specialists who made the “first diagnosis”. In fact, almost all malfunctions of modern flash memory (both “controller malfunctions” and “translation violations” and other fruits of specialists’ fantasies) are caused by damage to the memory cells of NAND flash chips.

During diagnostics It was found that the faulty SD card contains two memory chips in a TSOP-48 package 29F62G08CBABA production Micron 8 GB each and controller SM2687BAA from Silicon Motion. To recover data from the memory card, a decision was made to solder the chips and then read them. After soldering the microcircuits, their terminals were cleaned of oxides: in the normal position, soldering of SMD components is carried out from below, and when installed in the programmer, the socket contacts the NAND flash above, therefore, to prevent reading errors, all 48 pins are cleaned to a shine. To read the contents (dump files), the microcircuits were installed in a data recovery complex from flash media PC-3000flash.

The difference between memory chips of this type from the point of view of data recovery is that they use a slightly different power supply circuit than in older models, in which it is necessary to supply additional 3.3 V power to pins 24, 34 and 38 (providing power to the buffers ). PAK PC-3000flash allows you not only to quickly change the pin configuration, but also to change the value of the supply voltage. Reading memory chips was produced with a page size of 8944 bytes (this is the maximum size of the samples of flash drives that were used for data recovery with such memory chips) - if necessary, the page size can be reduced to actually used by the firmware of this controller. The remaining parameters for reading memory chips are taken from the reference book for NAND memory chips with id=0x2C64444B A9: SDR type, block size 4096 sectors. During the first reading, we leave the timings with a multiplier of 1, since there is no reason to believe that it is necessary to increase the duration of the pulses in this case.

After reading the memory chips for this type of SD card controller, you must immediately do ECC correction, since restoring data from uncorrected memory dumps is pointless: all recovered photos will be “broken.” Additionally on the ECC status map you can judge the serviceability of memory chips and try to subtract information that best matches the content. In this case, the ECC code corrects the page in the following way: an ECC code of 70 bytes protects 1024 bytes (two sectors) of user data and itself, and there are 8 such ranges, and after them another 26 bytes of service information with ECC. After performing the ECC correction, we received information about the areas that cannot be adjusted due to the ECC code – sections containing damaged(worn out) memory cells, and for the first microcircuit the size of these sections is slightly more than 1 GB, for the second - almost half. It is pointless to restore data from dumps with such severe damage, since bit errors that occur when reading faulty cells modify the information in such a way that instead of useful data, garbage appears in the results, and this garbage can also be found in the area of ​​service information.

Areas of service information– ranges of NAND memory pages that do not contain user data, but contain service data: ECC codes, translation tables, block markers, etc.

To reduce the amount unadjusted pages, a method is used to read uncorrected pages with ECC control and using various algorithms (Read Retry algorithm, increasing pulse repetition periods - timings, increasing/decreasing temperatures and supply voltages). In this case, the algorithm was applied Read Retry, which consists of changing the internal parameters of the memory array using external commands, developed specifically for data recovery, stored precisely in such memory chips. Reread process with ECC control- one of the longest processes when recovering data from flash cards running on heavily worn TLC memory, sometimes lasting several days. As a result, we have memory chip dump files corrected by more than 99%, which will allow us to collect a reliable image and restore all data with virtually no loss. The result of re-reading can be seen on the map of uncorrected pages: in this case, each dump contains no more than 10 KB of uncorrected sections.

Some data recovery systems (and the specialists working on them) are not able to perform re-reading under ECC control with the Read Retry mechanism. In such complexes, these microcircuits are called Problem chips and cannot be restored.

Considering the fact that almost all controllers S.M. They use the XOR transformation in their work to recover data from a memory card before eliminating the so-called "mix"(mixing data between parts of the memory chip and individual microcircuits), it is necessary to select a mask with which addition modulo 2 (XOR) is performed. The mask applies to this memory chipset and controller XOR 247(from the XOR complex library) with dimensions (1024+70)*8+26, which in total gives a page size of 8778 bytes. So the page size with which we read the chip is larger than the XOR mask, we will not lose the data, but the page will have to be “trimmed” a little, however, this will be absolutely “painless”, because the unused areas in the pages are filled with the number 0xff. For the convenience of the complex, we will choose a slightly larger one than required page size, multiple of 0x10(or 16 in decimal): 8832 bytes, of which we use 8778 for XOR conversion, and we’ll just leave the rest as a “stub”. After applying an XOR mask, you can find in the dumps headers files and pieces of the file system, but the size of these fragments will not be more than 1024 bytes due to the fact that useful data is still mixed with service data. For department custom data from ECC codes and service information Let’s use the “page designer” method, with the help of which we will cut out the spent ECC codes, divide the ranges into sectors and indicate service information for each sector.

Sector– the minimum unit of addressing disk space. Flash drives, like most media, have a sector size of 512 bytes. However, for data recovery, the sector size used in the complex is 512+SA (service area size). For ease of calculation, an SA size of 16 bytes is often used, even if the actual size is smaller.

In our case, the size of the service area corresponding to each sector is 26 bytes (this value is determined by the manufacturer at the production stage of the memory card), so we “discard” the part of the page that contains error correction codes and assign 26 bytes of service information to each sector of the page . As a result, we get a page “cut” as follows: ((1024 bytes of user data, consecutive))-70 bytes of ECC code)*8, and after them follow 26 bytes of service information (which in the editor will be “glued” to each sector ) and “stub” (purpose – see above). One of the reasons why to recover data from a memory card it is forbidden simply subtracting the contents of the chips with a programmer (even if there is no XOR conversion, which is very rare in modern media) and scanning with a program like R-Studio and the like is precisely the fact that there is useful information inside the memory chips mixed up with the service and in this example it would not have been possible to obtain a file fragment larger than 1024 bytes.

At recovering data from memory cards(and any devices with NAND-flash memory) it should be remembered that all transformations can be divided into two stages: eliminating mixing in blocks and assembling blocks in order of priority. Primary transformations(the so-called “mix”) depend not only on the controller firmware, but also on the design of the memory chips themselves. So, looking at the directory of memory chips, we see that chips with id=0x2C64444B A9 can have more than one plane within a physical part. In practice data recovery this feature manifests itself in the form of fragmented data the size of an interleaving block (the size of a block written successively into one plane). By analogy with, this feature represents blocks that were originally located on different drives, displayed one after another. The presence of such mixing can be checked using the method "rough restoration" in PC-3000flash: running the method on any dump, we will see that the maximum checked file size is too small to assemble blocks, which tells us that there are some kind of transformations (in our case - Interleave). The characteristic interflow is eliminated using the method block pair: we divide the dumps into blocks of the same size (the size of the interflow block) and combine them in pairs, thus “gluing” blocks that followed each other, but were recorded in different planes.

Considering the presence in the SD memory card two microcircuits(and, accordingly, two dump files), you need to define relationship between them: in any case, there is one more similarity RAID, either RAID0 or JBOD (depending on the controller firmware settings). To check the type of relationship between memory chips, we will use the view official information for a pair of sectors located in different dumps at the same address. Keeping in mind that for SM controllers typical position in bytes 514 and 515 of the marker with block number, we conclude that information from one block is located in different memory chips - just like in RAID0. To eliminate this transformation, we will combine the “semi-blocks” located in the dumps in pairs, and on the resulting combined dump we will launch a “draft” recovery. The appearance of “draft” files with a verified size of more than 1 MB in the results indicates that all transformations within the blocks have been completed correctly and you can begin arranging the blocks in the following order (assembling the image).

The final stage when restoring data from a memory card there will be image assembly(translator), which involves arranging blocks in order and distributing them among banks (blocks with the same numbers must go into different banks and follow with a period that is a multiple of the bank size). Considering the presence of pairs of bytes with the block number in the service area, you can try using broadcast algorithm"Block number 0000."

Build an image by block number

Master Boot Record

Image Builder Settings

Analyzing official information recoverable memory card, we determine that during assembly it would be logical to highlight the sequence 514 And 515 bytes for numbering block, however, the service information of the first (in computer numbering - zero) block will contain a pair 00 08 , second ( first in a computer way) – 01 08 etc., what not quite right: firstly, the senior part of the number comes before the junior one, and secondly, the senior part starts with 08, not 00. Is being decided this problem is quite simple: in the settings of the collector algorithm "unfold" marker (marker type 3412) and "we move" him (mask 70FF). Block size for the assembler, we calculate according to the advanced methods of the second grade of high school: the size of the block of the memory chip (reference value, equal to 4096 sectors) is multiplied by 4 (this number is determined by the transformations made) and we get 16384 . We launch the collector, look at the log and expect to see the root directory, data, etc. But it was not there: root directory is empty, no data visible. We launch the “draft”, we see the following picture: a lot whole files (which means the conversions are correct), the MBR is installed in place, which means the collector parameters are also determined correctly.

There is probably a problem with the assembly. It is worth noting that markers for the assembler, these are by no means reference points for the operation of the controller, but pieces of debugging information, they may not be contained in all blocks or not at all. Therefore, let's try to use a different assembly algorithm (specialized translator).

EN2683B BA assembler

Complex for data recovery from memory cards PC-3000flash is able to determine the type of block translator (assembler) by indirect signs(structure of service information). Often assembly based on translation tables (using a translator) gives a much more complete result, since almost completely models the controller operation algorithm. Automatic selection (auto-detection of algorithm) proposed a translator for our memory card EN2683B, therefore we can use this translator with auto detection parameters of its operation. As a result, we have the result, similar to the first collector: there is no file system, but there are whole files. That is the problem is not in the parameters and hardly in the translator type. Of course, it would be possible on this stay, tell the customer “the microcircuits are badly damaged, they did everything they could, but they can’t restore it anymore,” but this not in our rules– we will understand the reasons.

Analyzing service information the resulting image and we see that in the image don't hit some blocks (filled with a characteristic pattern DEAD). Cause lies, as is often the case in the data recovery industry, in the device and principles of operation of a memory card. Many modern controllers for speed up work(and for multimedia storage media, speed is one of the most important characteristics) blocks are used various sizes(almost like ZFS), for rarely changing data (directly user files) – big blocks, For often changing data (file system elements) – small blocks (or additions), which cannot be processed by some collectors (such as those discussed above) and it is impossible to obtain a complete file system. Absence working file system will cause not only the lack of names files (which, in general, is not particularly critical for photos from the folder DCIM), but also by the absence in the image large and fragmented files(for example, video recordings).

EN2685 assembler

From libraries of additional methods choose a specialized algorithm designed for data recovery from memory cards for cameras with controllers that use additions. The operating parameters of this translator are calculated at the stage of eliminating transformations: block size 16384 sectors, the size of the additions is determined at the last step of transformation by changing markers in pages containing elements of the file system ( 32 sectors). Having collected an image of the memory card using a translator with the necessary parameters, we get access to user data: in the root directory of the DCIM folder (with a green mark, which indicates that the folder title is correct) and the files inside.

Root directory

Recovered data

Data from memory card restored the next day after contact. Take care of your nerves and money: contact professionals who will take care of everything. Avoid contacting those who see the difference between NAND and BGA chips, offer data recovery with a price per megabyte, as well as mobile technicians and DIYers.

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Why you should contact us

Fixed prices. We do not lure you into the laboratory with a low price of “from 1500 rubles” and then say that in your case the cost is higher. The exact price is known in advance, as is the upper price limit. The cost of any work is listed on the website in the “prices” section. We do not deceive clients!

Work without prepayment. We do not charge upfront fees for parts, consumables, or “additional advanced diagnostics,” regardless of what work has already been done. The only exception is the unqualified intervention of others (but such cases are extremely rare). We value our reputation!

Free shipping. Our courier will pick up and deliver your drive free of charge. When sending a courier, we immediately inform you of the cost of the work “from” and “to”, but if the pre-agreed price does not suit the customer after delivery to the laboratory, then return delivery will be paid. We deliver all completed and paid orders free within Moscow.

MicroSD recovery is a very popular topic these days, because flash drives break very often, and you don’t want to lose information from them.

Therefore, many are looking on the Internet for information about the easiest way to obtain information from a media that does not work.

Moreover, the problems can be very different - for some, the flash drive simply cannot be restored, for others, errors appear, and so on.

And the answer to the above question is very simple - there is a special program for restoring MicroSD, and not just one.

The user only needs to use the most suitable one.

MicroSD recovery programs

CardRecovery

This program does an excellent job of restoring photos, videos and audio content from storage devices.

Unfortunately, it does not restore ordinary files, which is why it is intended only for those flash drives that are used in mobile phones, cameras and players.

How to use CardRecovery:

1. Download the program from this link. We launch it, read the greeting and click Next.
2. Select the flash drive in the Drive letter section, the device type in the “Camera Brand and File type” section (we also check the boxes next to the types of files that will be recovered) and the folder where the recovered files will be saved in the Destination Folder section. Click Next.
3. We are waiting for the restoration process to complete. Click Next.
4. We see a list of recovered files. We put a tick next to those that we want to save. Click Next one last time. The process is over.

PC Inspector Smart Recovery

This is a much more functional program that recovers almost all file types available today.

It works for both non-removable hard drives and removable media. To use it, you need to do the following:

1. Download the program from this link. Open it.
2. In the start window, select the “Recovery of logical files” item. You may need to click on the tab with the green up arrow on the left.
3. Next, you need to select the desired drive on one of the tabs (it can also be among the logical drives). Click on the checkmark on the right.

Hint: You can find out the letter and name of the flash drive in Windows in “My Computer” (“Computer”, “This Computer” depending on the OS).

1. Select the starting and ending sector. This must be done so that the scan size matches the media size. Click on the checkmark on the left.
2. Next we will see a list of all files. Green indicates those that can be restored, and yellow indicates those that do not require restoration. After this, you need to click on the floppy disk icon on the left.

R-Studio

On the official website they write that today this is the most “comprehensive” file recovery software.

Users do not resist this conclusion. To recover data using R-Studio you need to do the following:

1. Download the program (here is the link) and run it.
2. In the Drivers section, click on the media from which data will be recovered. Its properties will be displayed in the Properties section.
3. Next, the folders will be displayed in the Folders section, and the files in this folder will be displayed in the Contents section. To restore them, you need to click on the Recover button on the top panel of the program window.

Easy Recovery

Many experts say that this is a really good file recovery program. There is only one way to check this:

1. Download the free version of the program from this link and run it.
2. In the start window, click “Continue”. Next, select “Memory cards”.
3. Click “Continue” again. Select “Data Recovery” and check the box next to the file system of this media at the bottom.
4. Click “Continue” again. Wait for the scanning of deleted files to finish and the window with a report on the list of deleted files and folders to appear. On each one you can right-click and select “Save as...”.

Flash Memory Toolkit

This is a very multifunctional program.

In addition to recovery, it can also perform the functions of testing, destroying confidential information, backup and obtaining detailed information about the device.

To recover data, you just need to select the flash drive in the Device section, click on the File Recovery item in the menu on the left and follow all the instructions of the program.

Clue: All of the above programs can be downloaded for free on the non-commercial resource flashboot.ru.

Read our other articles about flash drive repair:

Sometimes restoring a MicroSD flash drive using the above programs does not go as smoothly as you would like - some problems may arise.

Let's look at the most common of them.

Problems with MicroSD recovery

MicroSD is not detected

It happens that you need to restore a MicroSD card, but the computer simply doesn’t see it.

It’s interesting that this usually happens completely unexpectedly and for no apparent reason: the user inserts the card again, and suddenly the computer stops seeing it (previously he inserted it, and everything was fine).

In this case, there are three options:

1. 1. The letter of the drive name matches the letter of the already connected drive. Indeed, it is possible that some kind of storage medium is already connected to the computer, and for some reason the flash drive is designated by the same letter when connected. In this case, you need to open the standard Disk Management utility (Win + R and enter “diskmgmt.msc”), select the flash drive there, right-click on it and select “Change drive letter or drive path.” After this, all that remains is to specify some other letter of the Latin alphabet and save the changes.

1. 1. Lack of drivers. In some cases, both the old proven computer and the new computer with a newly installed operating system may not have drivers for some media. There is only one way out - download and install them. The best way to do this is by searching on the official website. You can use the DriverPack Solution program. You can download it from this link. It independently determines which devices are connected to the computer and whether there are driver updates for them. It’s convenient that the program itself will determine whether drivers for the flash drive are installed. If this is not the case, they will be installed en masse, along with everyone else. To do this, the user just needs to click on the “Drivers” tab on the left and click on the “Install automatically” button.

1. You can also try connecting the memory card to another device. This will give you a chance to still read the necessary files and use the recovery program. For example, you can insert a MicroSD into your phone and restore not the card itself, but the entire phone as a storage medium.

Read other GeekNose materials on disk data recovery:

Another common problem is that the computer sees the flash drive, but does not see the files on the flash drive themselves.

The computer does not “see” MicroSD files

This means that the flash drive itself is detected by the computer, but some files (or even all) are missing from it.

The user may immediately think that the problem is in the card itself and it needs to be restored. But everything can be much simpler.

The solution to this problem is to check your computer for viruses, in particular Trojans, and remove them.

Indeed, the Trojan can make files hidden. So feel free to turn on and use your antivirus before lamenting about lost data.

It is worth saying that in some cases the MicroSD recovery process may differ depending on the device manufacturer.

Recovering MicroSD from different manufacturers

MicroSD Transcend Recovery

Transcend has its own file recovery software for MicroSD cards. It's called RecoveRx.

This program takes into account the individual characteristics of cards from a given manufacturer and is able to perform its functions much better than all of the above programs.

In addition to recovery, RecoveRx can format the card and put a password on it.

To perform a restore, you must do the following:

1. Download and run the program (here is the link). Select Recover from the menu at the top. In the program window, select Transcend (may differ depending on the name of the card, by default it is the same as shown here).
2. Select file types.
3. Wait for the process to complete and see a list of files available for saving. Save the ones you need using the drop-down menu (the one that appears after right-clicking on the file).

Recover MicroSD Kingston

The problem with flash drives from this manufacturer is that they mainly use Phison controllers.

This means that the user will have to resort to low-level recovery.

Other methods may simply not work. Briefly described, the process is as follows:

1. 1. Define the Vendor ID and Product ID parameters so that you can then use them to find the required utility. This can be done using the USBDeview program (link). Open the program and find the desired card in the list. Right-click on it and select “Html report: selected elements”. Scroll the window that appears until you see the Vendor ID and Product ID.

1. We go to the website flashboot.ru/iflash/ and enter the required parameters in the appropriate fields. As a result, we will see a list of all cases where problems occurred with this model. And on the right, in the UTILS section there will be programs for low-level restoration of this model. The user needs to try them all - usually more detailed instructions for use can be found on the official websites.

MicroSD Kingmax recovery

Kingmax also has its own software. There are two programs - one for U-Drive and PD-07 series drives, and the second for Super Stick.

You can download both programs.

Their use is extremely simple - you need to insert a USB flash drive, launch the program and click on the desired drive.

Sandisk MicroSD Recovery

After this, the flash drive will work like new. Using the programs is very simple.

In Formatter Silicon Power there is generally only one small window with two buttons (there you need to click Format), and in SDFormatter there are more options, but you will still only need to click on the Format button.

Smartbuy MicroSD recovery

There is one interesting thing about working with flash drives from this manufacturer - if the flash drive doesn’t work, you can just wait for up to several years, and after that it will work again.

If you don’t want to wait, you need to try all the recovery programs you can find.

This application looks like a regular folder.

Having selected the media, you need to click on the Recover button at the top, wait for the process to complete and see a list of files that can be recovered.

Qumo MicroSD recovery

MicroSD from Qumo are famous for the fact that they just suddenly die. One day they stop working, and after that it will be very problematic to see any signs of life in them.

Some users recommend using the above-mentioned programs R-Studio and CardRecovery. But not in all cases they will be effective.

There are special companies that are engaged in restoring “dead” flash drives using hardware methods, but such services are not cheap, and it is usually cheaper to purchase a new drive.

A-Data MicroSD Recovery

In this case, too, most programs do not help. Paragon Partition Manager Free works best with A-Data flash drives.

First, in this program you need to perform formatting (Format Partition button in the main menu), and then create a new empty partition (Create new partition).

Oltramax MicroSD recovery

In this case, full formatting using SD Card Formatter also helps well. In some cases, it is possible to restore the drive's functionality using ALCOR MP.

Full instructions for its use can be read.

Recovering damaged MicroSD

In some cases, when using the drive, the message “Damaged memory card” or something similar may appear on the screen.

The following programs help here:

• Smart Data Recovery – you need to select the media and click the Find button, after which it will search for all files that can somehow be recovered;

Rice. No. 14. List of files available for recovery in Recuva

• BadCopyPro – click on Memory card on the left, then Next, Next again, wait for the process to finish and see the list of required files.

The same operations can be performed on a device running Android OS. The following applications help here:

Prevention

It is better to use the flash drive correctly first so that later there are no problems with its malfunction. Here are some tips to help avoid MicroSD failures:

1. Do everything possible to ensure that the drive is not dropped, knocked, bent, exposed to extreme temperature changes or other impacts that could damage it.
2. Avoid ionizing radiation (such as from X-ray machines).
3. Do not touch the contacts with your fingers and generally try to always keep them covered with a special cover.
4. Defragment the card from time to time and generally use it regularly - MicroSDs don’t like to just sit on the shelf.
5. Try to make backups from time to time so that in case of a breakdown you do not lose all your data. To do this, you can use cloud storage.
6. Do not fill the entire storage capacity; let there always be some free space.
7. If the card is in some device, try to remove it from there as often as possible.

See our other materials on formatting hard drives and flash drives: