There is no deletion, there is no formatting, the sD card is suddenly nothing, what does it mean?

USB flash drive digital card mobile phone card:

First of all, you need to confirm whether the SD card is good, and you can try it by replacing it.

1.Connect the card reader to the computer and see if the drive letter capacity is good.

2.If it doesn't work, you can try another computer or card reader. If it still doesn't work, it may be that there is a problem with the card and it has nothing to do with the machine.

3.The machine changes to another good card, try to see if it still shows this problem. 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.

The card cannot be repaired, if there is data, it can be recovered.

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

This situation is that there is no secure deletion during use, and after directly unplugging it, it will become "Prompt formatting" "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. In this case, it would be good to format the ** software on the Internet, such as diskgenius. 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 to help everyone

After turning off the phone, wipe off the memory card and try it, if it doesn't work, change the card

The SD card is not inserted properly, or the SD card is not in good contact with the card slot due to the vibration of the mobile phone.

1. You have to remember never double-click to open, because double-click when you have artificially run the virus. You can right-click and select "Open" instead of "Autorun......"Then you can see the files you want.

2,Copy the file you want to save to the computer (because all the files in the card are gone after formatting),Then format the memory card,If the computer can't be formatted, please use the format command that comes with the K750 mobile phone,Then copy the file just saved to the computer to the card,You can also play a computer with the latest version of Rising software installed to kill the virus,But the effect is a little worse than formatting。

3. If there is an NTVDM file, now your computer has been poisoned, find a way to find a genuine antivirus software to kill the virus.

Try USB flash drive virus killing.

First look at the wood has hidden files, and then use 360 or QQ to shred up the files in formatting.

Or click Start - there's a run - and type cmdThen come up with something similar to dos, and then enter the command format:+the drive letter of your SD card, if your drive letter is an F drive, just format space f:

s (followed by s means quick format).

Check it on the computer, try it on your phone, and if it doesn't work, use your phone.

Try it in safe mode, if it doesn't work, try it again under PE, and if it doesn't work, it's stuck up.

If you can format the proof that it's okay, the problem is that the virus or the phone rewrites it after reinserting it.

Typical poisoning. Only forced formatting. If you really can't do it, you can use a USB flash drive for mass production, and you can solve everything.

There are hidden files, autorun and other files that run automatically copied.

Friend, see if your memory card has write protection.

Poisoned, formatted with 360 strong.