Sd is not determined. The PC does not see the memory card: SD, miniSD, microSD

Situations with memory card damage occur quite often. This article will discuss in detail the issue of restoring a damaged drive using third-party programs.

Loss of SD performance can occur as a result of many reasons - it could be damage to the drive itself, or a consequence of a malfunction of the device on which the card is installed.

Why crashes may occur

There are several most common causes, which may result in damage to the memory card:

• physical damage;
• availability broken sectors;
• wrong extraction storage;
• failure in the operation of the device;
• unknown errors, leading to a malfunction of the SD.

In what cases is recovery possible?

Physical breakdown SD cards may be directly related to case damage. It can crack, and the microcircuits inside are at risk of being damaged. The most common case is loss of retainer Lock. In addition, the interface controller may fail. In this case, restoring work and saving data is, fortunately, still possible.

The presence of broken memory cells is an equally common case. In this situation, the flash drive is not recognized by devices. This type of failure appears over time, because the drive’s memory has several read/write cycles. When they run out, the flash drive fails. It is possible to restore operation using specialized software.

In addition, there are errors that cause SD to malfunction. Such errors include the following system notifications:

• the media is detected, but its size is 0 KB;
• cannot be detected, read or opened on any device.

Errors:

• insert the disc into the device;
• USB device not recognized;
• flash card is damaged;
• this device cannot be started (code 10);
• error when connecting a USB device (code 43).

Each case will require analysis to find the cause of the failure and restore the data.

Device malfunctions occur quite often. In this case, the card is recognized on another device. This is due to connector damage on the gadget itself. In this case, you will have to repair the device itself, and not the flash drive. The same applies to damage to the SD card on Android.

Incorrect extraction is primarily due to user inexperience. If the card incorrectly removed, then the flash memory is damaged. Unfortunately, it is impossible to eliminate such a malfunction. In this case, only purchasing a new SD will solve the problem.

Formatting using special programs

Software that performs low-level formatting of the drive can resolve some problems. The most popular are HDD LOW Format and SDformatter. They are also used when micro SD is not formatted.

HDD LOW Format

An effective program that will help you format SD. HDD LOW Format has in its arsenal special formatting algorithms that will help restore the functionality of the micro SD in a few mouse clicks.

Process:

SDformatter

SDformatter is a small free and functional utility that allows you to perform low-level formatting of a flash drive. Among other things, the program allows you not only to clear the card, but also repair bad sectors. SDformatter's simple interface will allow even a novice user to cope with the task.

The process looks like as follows:

Using iFlash

To restore a memory card, you can use a special online service iFlash. This resource is a database of flash devices with the utilities most suitable for them.

Search process the required utility on the iFlash resource:

Kingmax (Super Stick and U-Drive)

To recover media from Kingmax, you will need Super Stick and U-Drive utilities. The operating principle of both programs is the same.

You can restore your drive in a few minutes:

• open one of the versions of Super Stick or U-Drive utilities;
• then a window will open (the interface of both utilities is identical);
• click " Update" and wait for the process to complete.

Sandisk (Formatter Silicon Power)

• install and open the program;
• in the utility window select the module “ Recover" and wait for the restoration process to complete.

A-Data (Paragon Partition Manager Free)

For drives from A-Data, Paragon Partition Manager Free is best suited.

The process of restoring a drive using it looks like this:

• open the program and in the main window use the module “ Format Partition»;
• then you need to create a new disk partition; to do this, select “ Create new partition».

There is another useful program - HDDScan, let's look at the process of working with it on video:

Other ways

If the above methods do not help or it is not possible to use them, you can try to recover the memory card using other tools.

Changing a letter disk:

Let's move on to installing drivers. To do this you will need DriverPack Solution for automatic installation the required software. You can also do this action manually and download the driver package from a specialized website.

In addition to using programs and other tools, it is best to start check the map on another device. If it is recognized, then the problem is hidden in your gadget (Android phone, tablet, camera and computer).

How to check a memory card for functionality

In case of failures and errors, it is worth checking the functionality. You don’t need to use special tools for this; standard tools will suffice. operating system.

The check can be done as follows:

How to handle SD card

To avoid data loss due to memory card failure, you must adhere to a number of rules when using it:

• try to keep the card in protected place, avoid water getting on the interface connector, falls and other troubles that could damage the case;
• not worth it touch with hands to the contact connector;
• necessary defragment drive and use it as often as possible. If it is not used, then memory cells degrade over time;
• don't forget make copies files located on a flash drive and transfer them to a PC;
• not worth storing on the map large number files, you need to leave some free space;
• at extraction from PC, you must use Safely Remove.

In this article, we will look at several reasons why the computer may not see the memory card, and also provide options for solving this problem.

In order to fix the problem, you need to find the cause. The reason could be either hardware or software. Let's take a step-by-step look at what needs to be done when the computer does not want to see SD or microSD.

Step 1: Checking the serviceability of the flash card and card reader

Check that your SD card is working properly. To do this, just connect it to another computer or laptop. Also, if you have another memory card of the same model, check whether it is recognized on your computer. If this is the case, then the card reader on the computer is working properly and the problem is in the card itself. The reason for the failure of the memory card may be incorrect removal during operation or its physical wear. In this case, you can try to restore the functionality of the SD card. To do this, experts distinguish 2 methods:

This utility allows you to quickly restore the functionality of a memory card. If it is password protected, then the program will not be able to format the card.

If the card reader itself does not see the memory card, you need to contact the service department for repairs. If you need to use the device urgently, you can use a temporary solution: use a portable card reader that can be connected to a laptop via a USB port.


It happens that a flash card is not detected by the computer due to lack of power. This is possible if the storage capacity is large, the power supply is faulty, and the USB ports are overloaded.

There may be a problem with model incompatibility. There are two types of memory cards: SD with byte-byte page addressing and SDHC with sector-by-sector addressing. If you insert it into the SD device SDHC card, then it may not be determined. In this situation, use an SD to MMC adapter. It also plugs into the computer's USB port. On the other side there is a connector for different types memory cards.

Step 2: Check for Windows failure

The reasons why the memory card is not recognized by the computer due to a failure of the operating system may be:

The DriverPack Solution program is very popular for finding and updating outdated drivers. To use it, do this:

It is best to get drivers from the website of the manufacturer of your memory card. So, for example, for Transcend cards it is better to go to. Remember that installing drivers from unverified sites can harm your computer.

Step 3: Check for viruses

Must be installed on your computer antivirus program. To fix the problem, just scan your computer and flash card for viruses and delete infected files. For this purpose in "Computer" right-click to open the drop-down menu and select the item there "Scan".

Often the virus changes the file attribute to "hidden", so they can be seen if you change the system settings. To do this, do this:

• go to "Control Panel", then in "System and Security" And "Folder Options";
• enter the tab "View";
• in the parameter "Show hidden files and folders" set the mark;
• click "OK".

Often, after a flash card is infected with viruses, it has to be formatted and the data is lost.

Remember that the data on the memory card can disappear at the most inopportune moment. Therefore, make periodic backups. This will protect you from losing important information.

In some cases, the phone does not see microSD, but not all users know why this happens and how to fix the problem

Moreover, this problem is serious, since it does not allow access to all the information stored on the flash drive.

For users whose phone is a player or a device for Internet surfing, this problem can pose a serious problem.

The essence of the problem

How does it manifest itself? this problem? How to understand that the phone really does not see the device? This is quite simple and becomes clear immediately after installing the memory card.

The device does not reflect that it was installed. At the same time, there is no memory card icon on the panel on the working screen, nor is removable storage displayed in the Memory section in Settings.

Accordingly, in all phone directories (for example, Music, Gallery) there are no corresponding files, previously .

Sometimes after installing external media into the phone, the device does not immediately display a message about its installation, as it usually does.

Sometimes while working with microSD it may suddenly turn off and a message like "Memory card is disabled".

In the most rare cases, the device reports that the memory card is damaged.

The problem can occur on both a new device and an old one. And also how old map memory, and with a new, empty medium. Regardless of this, the reasons are often the same in all cases.

Possible reasons

There are several reasons for this phenomenon. Conventionally, they can be divided into two large groups: problems with the phone and problems with the drive itself. The first group includes:

1. Direct damage to the memory card slot;
2. Other hardware problems in the device;
3. Problems with the functioning of the software, due to which the device cannot be seen.

The memory card itself may have the following problems:

1. Failure of the device (especially when a previously working card suddenly ceases to be recognized or the device reports its malfunction, which is typical for old memory cards with a lot of wear);
2. Physical damage to the contacts on the card or other problems;
3. File system mismatch (some new file systems do not “see” old phones, then it is shown that the drive is missing).

Depending on the cause of the malfunction, one or another method of eliminating it can be chosen.

<Рис. 2 Слот>

Elimination

There are several ways to deal with such problems. They are selected depending on the reason that caused the malfunction.

If this reason is not clear, then you will have to try several methods.

Working with hardware

<Рис. 3 Контакты карты памяти>

First of all, you need to check what exactly the problem is. Insert another memory card into the device, and if it is detected, then the problem is in the drive itself.

If not, then the problem is most likely in the phone.

What can the user do in this case? It is recommended to clean the card slot from dust, and also wipe the contacts on the media itself. This can be done with a cotton swab.

Most likely this will not solve the problem, but sometimes it helps. However, if it turns out that the card slot is broken, then the only way there will be a replacement.

Recovery

<Рис. 4 Восстановление>

Each one has a Recovery mode. Running it will allow you to “roll back” all dubious settings to factory settings.

Thus, if the device previously saw cards, but now does not see them, then this method can help.

1. First, perform a normal reboot of the device (not turning it off and on, but rebooting);
2. If this does not help, proceed to recovery;
3. Press and hold the power and volume down buttons at the same time for up to 10 seconds (most often, this is how access to the recovery function opens);
4. As soon as the device restarts, a special start menu will open in Windows;
5. Go to the Wipe cache partition item (you need to do this using buttons or by clicking on the screen, depending on the device);
6. Reboot your device (rebooting may take much longer than usual).

The map should now be detected. If this does not happen, then you will have to work with it on a computer.

Formatting

<Рис. 5 Форматирование>

Install the memory card into your computer using an adapter. Open it through the “My Computer” section to make sure the device is working.

If the computer does not see the drive, then the memory card is faulty.

1. Press Win + R and wait for the Run window to open;
2. Enter the command diskmgmt.msc in it;
3. Now a window should open in which all memory devices will be displayed - external, internal, formatted, unformatted;
4. If the letter designating the card matches the letter, for example, of the optical drive, etc., then you need to rename the card;
5. In rare cases, renaming may solve the problem;
6. If the problem is not solved in this way, then you need to completely format the card and create a new file system (of course, it is worth remembering that the data from the media must be copied before this);
7. You can format the device from Explorer;
8. Right-click on the memory card;
9. A menu will open in which you need to select the line Format;
10. A window will open in which you need to remove the marker from the window next to the inscription "Quick Format";
11. Below, indicate that you need to create a format file system (most often this parameter is set by default);
12. Click OK;
13. Wait for the process to complete.

After that, install the memory card in your phone. It should be successfully recognized. If this still does not happen, then it is possible that there is still a specific hardware problem.

Restoring work

<Рис. 6 Восстановление через ПК>

Restoring the operation of a MicroSD card is a specific case when a medium that was successfully recognized before suddenly ceases to be detected by the same device.

There was no damage to the media or phone, no changes in software phone number was not entered, etc.

This method can also help when the phone reports that "Memory card cannot be accessed", “The memory card is damaged, etc.”.

This method is quite effective, but only for old cards. And only on the condition that they worked properly before. There is no point in using this method for new cards.

1. Connect the memory card to a PC or laptop to make sure it is working properly;
2. Open Explorer and right-click on the map;
3. Select Properties from the drop-down menu;
4. Go to the Service tab;
5. Run Disk Check, having previously specified the need to automatically correct detected errors and malfunctions;
6. In the same section you can conduct Surface test with automatic recovery of bad sectors (although this is not necessary).

A more complex option is troubleshooting by working in the HKLM branch. This is done as follows:

1. Find the SYSTEM directory in the folder tree;
2. In it, open the StorageDevicePolicies section;
3. The parameters that need to be changed will appear on the right side of the window;
4. Assign a zero value to the defining parameter (write the number zero in parentheses in the combination 0x00000000(1)).

The card should now interact normally with the phone.

File system

<Рис. 7 Файловая система>

There are memory cards in microSD HC and microSD XC formats. The second option is typical for cards with a capacity of more than 32 GB.

They have a different file system, which has its own advantages (for example, recording speed and duration of recording segments), but is not recognized by all phones, tablets and other devices.

So, some phones are simply not designed to support cards larger than 32GB. In this case, it is almost impossible to change the file system without special skills.

However, it is worth remembering that the type (HC or XC) of the card is written directly on it, so it is important to choose the appropriate one.

WHAT TO DO IF ANDROID (PHONE) DOESN’T SEEN THE MEMORY CARD?

The phone does not see the MicroSD flash drive: what to do, how to fix it?

Hi all! Today we’ll look in great detail at what to do if computer or laptop doesn't see flash drive. Before you begin any action with a flash drive, read the article to the end - this IMPORTANT!

Mobile flash drives are the undisputed leaders among devices for storing personal data. However, malfunctions in their operation occur regardless of the brand:idea: and your version.

Let's figure out what to do if your computer or laptop does not recognize the flash drive. Below in the article are all known issues And most effective ways to solve them, but first try these two simple solutions:

Try installing the flash drive into another computer or laptop.

No matter how trivial it may sound, before you sound the alarm, try restarting your computer. This solves the problem in 50% of cases.

The necessary theory for understanding - Flash drive: to live or not to live.

Practice shows that if flash drives malfunction, it is quite difficult to return both user data and the functionality of the device.

You can safely say goodbye to a flash drive if there is an electrical short circuit, mechanical damage to the chip or contacts on the board, or a controller failure.

To find out " survivability» flash drive, insert it into the computer. If the system does not show a new device and the LED on the case does not light up, then most likely the drive cannot be revived.

If the flash drive still shows signs of life (the LED indicator is on), but does not work, then there are solutions; let’s look at the possible reasons.

Do not forget that flash drives have a limited service life - with active use, only a “couple” of years.

The device may simply wear out or burn out due to a voltage drop, or be damaged due to careless handling.

Possible problems with the flash drive.

Most often, the problem lies precisely in the flash drive, its compatibility and characteristics. The following are typical problems for flash drives and recommended user actions.

The methods described belowwork on both XP and Windows 10and younger. The main difference is the changed interface. The commands and section names remain the same.

1st reason: Unformatted disk.

If, when you start a flash drive, the system asks you to format it before starting work, does not allow you to access user information and shows the absence of files, then the problem is clear, and formatting is inevitable, but there are cases when a virus hides all files, I gave a solution for this reason in this video:

If higher described problem does not fit, then go to the properties of the flash drive and click on the option - Format disk ( Important: when formatting data, data recovery will be very difficult) and select the appropriate file system NTFS or FAT 32 (see below: File system conflict).

If valuable data was stored on the drive, use fast mode when formatting. Then try to recover deleted files using utilities, but this method does not always allow you to completely return files (see below: Recovery programs flash drive).

Before proceeding, test the flash drive on another device. There is a chance that the flash drive is “buggy” or was disconnected incorrectly.

2nd possible reason: Cleaning the USB connector.

If the flash drive is quite old, has been in more than one bag in its life, and also serves as decoration, then its connector could be clogged. Accumulated plaque and dust can cause“invisibility” and similar “glitches” such as not starting the first time or low reading speed.

However, the chance of bringing a flash drive to such an “unreadable” state is quite small. A small object like a match or a hard wooden toothbrush will help remove debris and dust. Carefully walk along the contour and blow out the flash drive.

Avoid sharp metal objects that can cause damage to the device.

The 3rd possible reason is Autorunner viruses.

1. Click Apply and Ok.
2. We go through “My Computer” to the media and delete the file called Autorun.inf.
3. We drive the flash drive using antivirus. Afterwards we highly recommend formatting it.

Pay attention! If a virus has settled on the computer, then most often antivirus treatment does not help (especially for drive E - there is such a reason...). You will have to reinstall the OS and drivers.

4th reason: Problems with the computer (does not see the flash drive).

Computer problems are less common and easier to fix. The most common failure is inactive USB port. Let's look at the possible reasons:

Lack of nutrition.

Often a failure occurs if the drive is connected to connectors with front part system unit. This problem is familiar to users of personal computers who primarily use the front panel. The main reasons are:

• lack of power on the front panel (port goes off);
• The front USB port is not connected to the power supply.

By decision The problem will be connecting the flash drive to the ports on the rear side. A more productive way is to connect the cable to the motherboard.

The appearance of the cable is different for each system unit model and depends on the number of ports. Focus on the color of the cable and the standard D-, D+, VCC and GND markings for all.

The USB port is disconnected or burned out.

Sometimes the computer doesn't see the flash drive due to a port failure. In this case, not only the flash drive, but also other devices are not displayed.

The main reason is damage to the contact or disconnection of the USB connectors in Bios. If you need to go to a workshop with a burnt port, you can curb the BIOS yourself, for this:

1. When loading the system, press F2 or Del - depending on the BIOS version.
2. Finding the tab Advanced, then USB Configuration.
3. Check that USB Controller is displayed next to Enabled line– permission to use ports.
4. Save your settings.

Please note that Bios settings differ on different motherboard models. Once again, without a significant reason, you should not edit them.

Difficulties with sections.

One more possible reason– problems with partitions. In this case, the computer recognizes the flash drive, but produces a characteristic sound and an unfamiliar shortcut with an arrow appears in the lower right corner. As a result, the system does not assign a partition letter to the new device (for example, F). To fix the problem:

• Right-click on USB and select “Change drive letter” from the options offered in the pop-up window select Change and letter from the proposed options;
• save and try.

File system conflict - MacOS.

A system running NTFS may not like it "flash drive" with FAT32. Due to file system conflicts, similar problems are possible.

Most often, owners of apple products encounter conflicting flash drives. So, for Mac OS the main file system considered ExFAT or MacOS Extended, which Windows cannot read.

To resolve the conflict, will have to format drive, having previously decided on a file system suitable for your PC.

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