Why is the SD card unavailable after the system update?

To fix SD card is corrupted or unusable, you can try the following methods:

1. Restart your phone;

2. Take out the SD card and wipe it with alcohol and reinstall it;

3. Format the SD card after backing up the data (if other mobile phones or devices can read the memory card normally);

4. If it still can't be recovered, you can only replace an SD card and use it again.

What's going on with the phone SD card not working.

Why is the SD card not available?

SD card is a commonly used storage device in our daily life, but when there is a time of turmoil, we will encounter the situation that the SD card is not available, why is this? Let's analyze them one by one.

The SD card is corrupted.

An SD card is a rewritable storage device that can get corrupted after a long period of use. The reason for the damage may be due to the failure of the internal memory chip of the SD card, or the loose or dirty interface of the SD card. When the SD card is damaged, we need to replace it with a new SD card.

The SD card reader is faulty.

Sometimes the SD card is not damaged, but the card reader is faulty and the SD card is unusable. The failure of the card reader may be due to a problem with a loose or dirty card reader interface, or an abnormal driver. We can try to change the card reader or reinstall the driver to solve the problem.

SD card file system corruption.

The data stored on the SD card may be damaged due to abnormal power failure, virus attack, etc. When the SD card file system is corrupted, we need to use data recovery software to recover the data or format the SD card to re-establish the file system.

To sum up, the reasons why the SD card is not available can be a corrupted SD card, a faulty card reader, or a corrupted SD card file system. We can take appropriate measures to solve the problem on a case-by-case basis.

USB flash drive digital card mobile phone card:

First of all, let's make sure.

U disk digital card mobile phone card is easy to use, you can use the replacement method to try.

1.Connect the card reader to your computer and look at the drive letter.

Whether the capacity is good.

2.If it doesn't work, you can try another computer or card reader. If it is still not good, it may be a USB flash drive, digital card, mobile phone card.

There is a problem and it has nothing to do with the machine.

3.Machine. Change a USB flash drive digital card to a mobile phone card.

Other good cards, try to see if this problem still shows. If it is still, it proves that there is no problem with the card, but the machine settings or somewhere are damaged, need to be repaired or whatever.

If it's a digital card.

The card cannot be repaired, if there is data, it can be recovered, and the USB disk can be repaired or the data can be restored.

USB flash drive digital card mobile phone card: "prompt formatting", "unable to open normally","The device is not working properly"：

This is the case when there is no secure deletion during use.

After pulling it out directly, it becomes when it is plugged into the computer.

Prompt: "Formatted" "Unable to open normally" "Device is not normal" "0 bytes" cannot be opened.

There are two types of situations.

1. Due to the sudden pull out of the U disk digital card mobile phone card, the loss of the FAT damage prompts insertion into the disk or formatting. This is the case with the best software on the Internet such as DiskGenius

It's good to format it. If it doesn't work, try it with mass production tools.

2. Hard fault: due to sudden unplugging, the voltage instability may cause damage to the sperm element or burn the chip. Caused by the failure of the U disk itself such as crystal oscillator virtual welding.

In this case, I recommend that you find a professional data recovery company, or a USB flash drive repair company to try to repair the general recovery ** in about 200-300. Don't try to unpack the shell yourself, if there is a hard failure, you need to polish the memory card to extract the essence to recover, then 3000 up, don't try it yourself to avoid aggravating the failure. If you don't have important data, I'd suggest you switch it out!

If you have any questions, you can ask them, I hope it can help you.

Wish