Why can't my computer see my memory card? We eliminate the malfunction. User actions when the android phone does not see the memory card
Installation of programs on the internal memory of the tablet is carried out by default. To put the application on the built-in memory card, just follow the standard installation. It will take a little longer to send it to external media. One simple setup session will clean up the device's file system by installing each new application to the SD card.
Option 1: specifying the installation address
During installation, some programs ask the user where they will be accommodated. It is not difficult to specify the address of the installation. Choose a removable memory card, and you're done. But this applies only to some applications, such a minority.
Option 2: set the installation path in advance
The application must support the app2sd patch if the Android OS version on the tablet is earlier than 2.2. There will be no such items in the settings. For all new versions, such an algorithm for solving the problem is suitable.
Go to "Settings", find the item "Memory". Click on it and the memory settings menu will open. Here you can also find out about the amount of free memory on your device, how much space on the tablet in general, how much internal memory is occupied. Some people insert an SD card into a card reader, and find out the data about the flash drive on the computer, not knowing that it can be done on the tablet.
Find the "Default Burn Disc" section, which offers several sources for installing applications. Choose "SD card" from among them. Click on this item, and you will see a circle opposite it. Now the installation of applications to the memory card on the tablet occurs by default.
Option 3: Using third-party programs
Most likely this method will help you. But he demands. You can find out whether or not there is a root right on the tablet by. We download special applications, like FolderMount or GL to SD, which will help you transfer game and program data to an SD memory card. See video instructions below:
Option 3
Install a program on your tablet PC that will provide an option to select the installation address. Before the direct installation of the application, a dialog box will appear in which you specify the installation address.
This is the most convenient option among those offered. Because a forced installation "default" is not desirable in all cases. Utilities such as InstallManager, MagicUneracer will help you organize an economical and efficient filling of the tablet's memory. By the way, these same programs also perform uninstallation of programs with all auxiliary files.
If the app is not installed on an SD card
Open the "Applications" item in "Settings". In the list of applications, select the one that you would like to transfer to the removable card. Click on the app icon and a menu will open. See if it has a "Transfer" option. If there is, click on the option button and select the memory card. This procedure does not require the installation of additional software, you can do it yourself.
A flash card is the most functional and popular storage medium in our time. CDs also have their positive sides, but the amount of memory, clarity in use and other factors are on the side of the flash drive.
You can also connect a USB flash drive to an android smartphone, and even the cost today is on the side of the memory card, because cheap options will cost only a couple of times more than DVD-RW.
Only now it is much easier to disable or lose a memory card.
It happens that a person takes this information carrier out of his own smartphone or digital camera, but the computer does not open it. This happens due to virus infection, software glitches, and breakdown of the device itself. In such a situation, it is necessary to restore the micro SD flash drive by changing the partition letter or in other ways.
VARIETIES OF DEVICES OF THIS TYPE
Before restoring a memory card, you should familiarize yourself with the varieties of this small but useful detail. People are not very knowledgeable about this issue, which also brings problems. Today, three types of SD devices are produced: micro, mini, SD.
It would seem, why divide one species into three additional ones. But this is a logical decision, because SD is used in different equipment: camcorders, DVRs, smartphones, mp3 players, etc. Gadgets differ in size and requirements for power and memory capacity of the device. Therefore, there are three subspecies, which are worth familiarizing yourself with in more detail:
- MicroSD. Micro SD memory card is commonly used in smartphones, tablets and media players due to its format and storage capacity.
A small device allows you to increase the memory of the gadget several times
- MiniSD is already slightly larger than micro. They are used on players and phones that are already 5-10 years old.
Today they gave way to the previous version
- SD. This is the largest type that is used in photo and video equipment, in particular, in car recorders.
This option is distinguished by a large amount of memory and good speed
It is interesting that the first option, if necessary, can be turned into the third with the help of an adapter. A micro card is inserted into this adapter, and then the design is inserted into devices that work with SD.
But this combination will not be able to fully replace the large version, because the speed of work will be too low
IMPORTANT NUANCES IN USING THE MEMORY CARD
- In addition to the amount of memory, the speed is also indicated on the surface of the product (to be precise, the class). So, if a flash drive has this indicator equal to 10, then data can be transferred to the device at a speed of 10 MB per second. It is worth considering which class is required for the normal operation of the gadget.
- A memory card for a phone with an adapter can be used as an SD. But, as already mentioned, it is not advised to do this due to the mismatch of the class of parts.
- The USB flash drive must be selected for compatibility. When a gadget that opens SDHC is used, it will be able to work with SD 1 or 1.1, but it will not work to read SDXC.
Before buying reading devices, you need to consider this characteristic.
Laptops that are 7 or older can be equipped with standard card readers, but they cannot open SDHC. A card reader that connects via USB will help to solve the problem. It costs a couple of hundred rubles. You can also use an otg cable (it will help you connect a card reader for micro sd or a regular USB flash drive even to a smartphone).
SAME NAME OF SECTIONS
Let's return to the problem of unreadability of the device. The flash drive will not appear in the "My Computer" menu if it is given the name D, and the operating system section works with the same name.
fig. 1. It is not difficult to unlock a USB flash drive in such a situation; for this, the "Disk Management" menu opens (a combination of the Win and R keys and the command diskmgmt.msc)
A menu will appear on the screen, showing the folder of each disc and devices connected via USB. When a memory card appears in this menu, you need to reanimate the flash drive in one of the following ways:
- Put a unique letter in the name, under which there are no sections yet.
fig. 2. This is done by pressing RMB and further selecting the operation to change the letter
- Format the SD card using standard Windows tools or using special utilities. But it is worth considering that all files from the storage medium will disappear.
DRIVER PROBLEM
If you can connect the USB flash drive to the tablet, but not to the computer, then the necessary driver may be missing.
It happens that the employees of the hardware stores forget or do not want to install the necessary components and sell computers like that. The equipment must include CDs with drivers, the installation of which will not take much time. If the computer is not new, or the disk with "firewood" is lost, then the almighty Internet will help. In such a situation, restoring a micro sd flash drive is limited only to finding and installing components.
Special utilities are available on the Internet for analyzing the operating system and finding the necessary drivers; they will greatly simplify the task.
CONNECTING WITH OTHER GADGETS
If the flash drive connects to the phone without problems, but you can't see it on the PC, then why not use this smartphone as a conductor and connect it directly to the computer (you can use the otg usb cable)
Most users rarely pull out a memory card to work with files through a computer.
The only question is whether special software is needed for this purpose. In new versions of the operating system, you do not need to install anything additionally, Windows 7 and 8 automatically install drivers for devices. If you wish, you can also use a program from the manufacturer (for example, NokiaPCSuite).
As you can see, restoring a microsd memory card is not difficult, sometimes you need to install drivers, change the partition letter or use third-party devices.
Good day everyone!
Today, the popularity of SD-flash drives, I think, is not inferior to USB-flash drives. Judge for yourself: phones, tablets, cameras, cameras - SD-flash drives are used everywhere (sometimes they are called SD-cards)!
In general, I must admit that SD-cards are quite "capricious" devices, and it is not uncommon for a computer not to recognize or see it. In these cases, usually, we immediately remember that there are important photos, files, data on the flash drive - which simply need to be 100% returned and restored!
In this article I will give the most common reasons for the invisibility of an SD card by a computer (laptop), as well as recommendations for eliminating them. I hope my humble advice will be useful to someone. So...
Many users confuse one point (although it is not the key one, it will help in solving the problem). I will show it on the example of one user question.
I took the card from my phone (microSD) and inserted it into my new device, but he offered to format it. Then I put it back in my old phone, but he also wanted to format it. My laptop also does not see this card and suggests formatting it. What to do? Help get the data back from the flash drive.
An illustrative case. The laptop sees your USB flash drive, and even offers to format it - i.e. he does not understand that there is data on it, he cannot recognize your flash drive, he cannot read the file system (in this case, the file system is marked as RAW).
This often happens due to:
- failure of the file system on the flash drive;
- Windows cannot read an unfamiliar file system (for example, it often happens with disks connected to a TV - it can reformat them into its file system, and then Windows does not see it).
By the way, many make one mistake when connecting microSD to a computer: when inserting a card into an adapter, they do not push it all the way (see photo-1 below). As a result, the PC simply does not see anything when the SD adapter is connected.
USB flash drive check: fix file system errors
In this case, you can try to restore the operation of the flash drive and all the files on it using the utility for checking and correcting errors - chkdsk (built into Windows).
To do this, do not agree with Windows' suggestion to format the media (screenshot above), but just run command line (The easiest way: press Win + R, then enter CMD and press Enter, see the screen below).
Disk / flash drive check
An example of recovery is shown in the screenshot above. After such a simple procedure, the flash drive returned to its working state and functions normally to this day.
When the check is successful, usually the command line will report something like: "Windows checked the file system and found no problems. No further action required.".
As a rule, if there was a slight failure of the file system, then chkdsk it will be eliminated and the flash drive will become readable (after this procedure, both the phone and the laptop will be able to read it).
Now what to do if chkdsk did not help, but you need to restore files from a flash drive ...
Recovering files from a flash drive
If, after trying to fix errors, Windows still intends to format it (i.e., the OS sees it, but does not recognize it), then first of all, I will recommend that you recover files from it (if, of course, you need them).
After you format the flash drive, it will be more difficult to recover data from it (and in the case of writing new files, it is completely impossible!).
There are special programs for data recovery. Some free and popular ones, I will list in the table below.
Instructions! How to recover a photo from a MicroSD memory card or USB flash drive -
3 free data recovery software
| Recuva
One of the best programs for low-level formatting of various drives: hard drives, flash cards, etc. Key features:
How to format SD card in HDD Low Level Format Tool:  Letter conflict: drive letter changeIn general, when you connect a drive (including a flash drive) - Windows assigns a letter to this drive (for example, F :). But there is such a "glitch" that the letter is assigned incorrectly: for example, the one that is already in the system - as a result: a conflict occurs and your flash drive is invisible! Therefore, if the flash drive is invisible, the first thing I recommend to do is to go to "Disk Management": see the drive letter, change it (it is possible to format the media). 1) To do this, first press the buttons Win + R, into line "Open" enter command diskmgmt.msc and press Enter.
2) Next, find in the list the disk (microSD card) that you do not see (is not visible). Right-click on it (sign-1 in the screenshot below) and select "Change drive letter or drive path" . If in "Disk Management" the desired flash drive is not in the list, go to the next subsection of this article. If the file system is marked as RAW, the flash drive must be formatted (more on this at the beginning of this article).
Change drive letter 3) In the next step, press the button "Change" (number-1 in the screenshot below), then set the slider to "Assign drive letter (A-Z)" and choose some unique letter (the one that is not in the system). Agree to the changes made. Sometimes, you may need to restart your computer (laptop).
If the problem was related to an incorrectly set drive letter, the flash drive will become visible and will work as usual ... Classes and formats of SD cardsSD card SD card is different - they differ not only in volume and manufacturer, but also in size, class (speed), generation. All this, of course, can affect the visibility of the SD-stick in the card reader ... Sizes of SD cards There are three form factors for SD cards: SD, miniSD, MicroSD (differ in size). Cards are used in a variety of portable devices: phones, cameras, camcorders, tablets, etc. The most widely used are microSD cards (due to their compact size, they can even be inserted into a miniature phone or MP3 player).
To connect a microSD card to a laptop or computer, a small adapter is always included with it (see photo below).
Typical SD card information
Manufacturer : here no comment. The only moment is when you buy yourself an SD card, I recommend stopping at well-known manufacturers: SanDisk, Transcend, Sony, etc. SD card type
Important! Compatibility table of card readers and types of SD cards In principle, each card reader (on the packaging with it) indicates which cards it supports. Naturally, if you insert a newer card, he simply will not see it and you will not be able to read it. The table below will show you the compatibility of card readers and types of SD cards.
Card class (speed) Usually, SD cards indicate not the speed of work (in MB / s, although sometimes it is indicated), but the class of the card. Using the tables below, you can find out what speed your card will support. Important: the higher the speed, the more expensive the card. Some devices require a specific class of card (for example, a camera, otherwise video recording will be slow, or not at all) - so be careful with this moment! Speed \u200b\u200bclass UHS Speed \u200b\u200bClass
Capacity, card size The bigger, the better. True, try to proceed from real needs: if you need to store a dozen or two photos, then maybe there is no point in overpaying and taking a large-capacity card? Lack of driversIt is possible that your flash drive is not displayed due to the fact that the drivers are not installed on the card reader. In this case, the card reader itself does not work, which means that it will not read the SD card either. In this case, usually, the flash drive is not visible in "Disk Management" and in device manager - a question mark will be lit in front of the device (it means that there are no drivers).
No driver (that's why the flash drive is not displayed ...) - device manager How to enter device manager
In the device manager, look at the "USB Controllers" tab, it should just be, something like "Realtek USb 2.0 Card Reader" (see screenshot below). No question marks or red icons should be lit in front of the device.
If you do not have a device (card reader) in the lists, and there are unknown devices with question marks (example -) - most likely you simply do not have a driver. There are several ways out: PS A few more tips:  On this I am finishing the article. For additions on the topic - a separate merci in advance. All the best! |
The size of the available memory in modern Android smartphones allows you to store a huge amount of data.
But when the initial volume for everyday needs is not enough, microSD cards come to the rescue. Unfortunately, embedded hardware does not always work as it should for various reasons. Let's try to figure out why the memory card refuses to work on the phone and how it can be fixed.
Contact problem
If the removable storage has recently been working properly, the first step is to check that it is correctly connected to the smartphone. Even a slight misalignment of the SD card can lead to a data read error. In addition, mobile device contacts can become clogged during operation, which becomes a common cause of failures and errors.
To solve this problem, you need to remove the memory card from the device and carefully clean the slot tracks to remove any dust that has got inside. When reconnecting the microSD to your phone, make sure that the memory card is inserted the right way round and is securely seated.
Device incompatibility
Before purchasing a new memory card, you need to check its compatibility with your mobile phone. Modern smartphones use the microSD media type. This format, in turn, has four generations (SD 1.0, SD 1.1, SDHC and SDXC), the main difference between which is the amount of available memory and the speed of data reading. For example, SD 1.0 can hold anywhere from 8MB to 2GB, while SDXC can hold up to 2TB.
When it comes to mobile support, it is backward compatible. Smartphones with a specific microSD format will work with older versions as well.
Smartphone malfunction
In some cases, errors with displaying SD card data may be caused by Android system. Incorrect operation of applications and the action of virus files can block reading information from external media. This may make the memory card appear defective.
The simplest and most obvious way out of this situation is to remove the malware and then reboot the device. To do this, you need to download a good antivirus program. If the SD card is in working order, but the smartphone refuses to recognize it, you can try doing a factory reset. You need to understand that all data from the phone will be deleted.
Incorrect formatting
Software glitches during the microSD wipe procedure may cause it to malfunction. In this case, you need to do the formatting again via the computer.
First, you need to insert the removable media into the card reader and wait until the system recognizes it automatically. After that, you need to right-click on the microSD in Explorer and select "Format". In the "File system" section, be sure to specify "FAT32", since Android does not support other formats.
Broken memory card
When none of the above methods work, there may be an internal malfunction of the memory card. This happens when, with prolonged use, the contacts wear out and the signal does not go to the board. Sometimes damage occurs due to mechanical damage to the SD card or a factory defect.
You can check the performance of the media using another smartphone or computer. If none of the devices can see it, you just need to buy a new memory card. If the data stored on it is important, you can contact the service center for help. There is a chance that the data can be recovered.
We talked about the main types of SD card malfunctions and how to fix them. Most of the problems can be solved on your own, but if the equipment fails, you will have to replace it.
A memory card (not to be confused with a flash drive) is the most common storage medium. It has long overshadowed CD and DVD media, while the popularity of the drive is only growing. Engineers manage to endow a small piece of plastic with such an impressive amount of memory that soon even the need for bulky HDDs will disappear.
Today card standard SD, SDHC and SDXC used in the following gadgets:
- smartphones;
- tablets;
- cameras;
- cameras;
- readers;
- VR glasses;
- players and more.
But sometimes incidents occur during operation: the computer does not see a memory card that has just been removed from a device, although it worked properly beforehand. What is the reason? Let's try to figure it out.
Types and standards of drives
First, let's dwell on the purpose and specifications of the cards, and also consider the dimensions. There are 3 different standards on the market now:
- miniSD;
- microSD.
What is this gradation for? It all depends on the speed of reading and processing data by the drive itself. Let's say a mobile phone or smartphone, as well as a portable player does not need high memory performance. Here, the main criterion is the minimum size of the flash drive (the term is not entirely correct, but familiar to the layman).
MicroSD
Cards of this form factor are popular among developers of portable electronic devices. Dimensions 11x15 mm allow you to use the memory in any device. A small piece of PCB can significantly expand the total memory pool of any device up to 128 GB (or even 256 if the device supports such a capacity).
MiniSD
This standard has long lost its former popularity, but is also used in portable electronics. It was ousted from the counter by a “competitor” represented by microSD. The dimensions are 21.5x20 mm.
SD
Cards of this type with dimensions of 32x24 mm are used in the dominant part of devices that require a large amount of external fast memory. Main scope of application:
- video cameras;
- registrars;
- professional and consumer photography equipment.
Such cards have several generations, which characterize the maximum amount of stored information and the speed of reading / writing:
- SD 1.0 - 8 MB - 2 GB (almost never used);
- SD 1.1 - up to 4 GB;
- SDHC - up to 32 GB;
- SDXC - up to 2 TB.
Other important characteristics of choice
Volume isn't everything. There is also "class" - the minimum speed of reading and writing information. Now the most common type is "class 10", ie. data exchange rate not less than 10 MB / s. If you record video in 4K resolution, then purchasing "class 6" and even more so "class 4" is simply useless - the delays will be huge.
The second point is adapters and adapters. You can insert microSD into a special SD-adapter (can be included in the kit) and use such memory in everyday life, but the speed delay will come back to haunt instantly.
Since we have learned the basics, we will figure out why the computer does not see the memory card. Consider the following reasons:
- compatibility;
- wrong volume letter;
- driver.
Compatibility issues
All card readers, whether it is hardware built into the case of a PC or laptop, or an external device working via USB, are backward compatible. In other words, if it is designed to read data from SDHC cards, then it will work without problems with SD 1.0 / 1.1. But "making friends" with SDXC will no longer work - the technology is different, although the card looks identical to the others.
The problem is solved quite simply. It is enough to have at least one working connector in use USB 3.0 (version 2.0 lacks speed) and an external card reader, which is sold in any electronics store for a penny price.
Drive letter conflict
An SD card is the same drive, only solid state. It is detected by the system like HDD, SSD and DVD drive, i.e. gets its "letter". Often, registration is automatic and you don't even pay attention to it. The problem can arise in two cases:
- 26 logical devices are connected to the PC (the number of letters of the alphabet);
- the system refuses to register the drive itself.
In the first case, you will have to disconnect at least one disk / drive / flash drive, there are no other solutions. In the second, everything is a little more complicated, but fixable. If you are sure that the card is fully functional and visible on other devices, but not displayed on the working machine, do the following. Press the Win + R combination and write the command “ diskmgmt.msc»
We get into the disk management manager. All drives and other "letter" devices will be displayed here. Typically, you won't see A and B, since these characters are reserved for floppy drives. Even units that are not formatted and are not recognized by the system will be shown. Found your map (which you would like to rename first)? We do the following:
Change the letter to a unique one by right-clicking on the device and selecting the desired item in the context menu. 
We format the card if it is new or does not contain any important data. If there is important information, dump it on a PC / laptop that can read the information. Formatting removes absolutely everything from the surface - remember that. 
Do not forget to change the file system to NTFS (read files over 4 GB) and rename the drive itself (this makes it easier to recognize).
Drivers
Another popular problem that is also being addressed. Most often, it suffers from new equipment, only purchased in the store, or you installed a new version of Windows, but did not install all the components. Often the set includes an installation disc with all drivers and utilities. And what if you didn't put it in, or there is no floppy drive at all?
In this case, look at the name of your motherboard (PC) or laptop model. In the first case, we go to the site of the “mother” manufacturer and select the software necessary for our OS. In the second case, we do the same, but on the portal of the laptop manufacturer.
The second option is to open the device manager using Win + R and write “ devmgmt.msc». 
Searching for "USB controllers" and seeing a yellow warning triangle that says no drivers are installed. We update and use. If the card reader is external, try looking for a driver for it - this can also solve the situation.
But if nothing saves, then the time for the card has come.
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