What if the computer card reader can't read it?

Cause analysis

I do not know if the USB disk can be normal, if normal, then put your card reader to change the computer test, to confirm whether it is the reader itself, if not, you can insert the reader into the computer, and then open the Device Manager, to find that insert the reader's USB interface (open Universal Serial Bus controller can see the If you can't confirm which one it is, you can plug it again and then know, check that port, click the right button, select the Update driver, and then reinstall the driver can be installed, such as the normal after installation can be identified, in My computer can also find a reading card mouth of the disk. Here again, the plug does not respond because the original when inserting the card reader, the system installation driver out of the problem, resulting in the card reader can not recognize the

Solutions

The first step is to insert a phone card or whatever card on the reader,

The second step is to connect the card reader with the USB interface of the computer. Normal words will have a beep and the lower right corner prompts pop-up. (no beep or no hint pop-up also can't read the case, recommend a new USB jack to try, the computer chassis behind the socket)

The third step, change the socket is not OK, point Control Panel--Add New hardware--find (and can not find the words, on the other computer to try)

The fourth step, on the other computer is also not good to make the words = Card reader is bad. (If it works on another computer, check to see if the USB jack on your computer is disabled---if you disable it for open use)

Another method recommended by a Netizen

Recommend several methods to try:

1. Put the U disk in the back of the computer, is the motherboard directly out of the USB test, the back of the general stability of some, voltage;

2. "My Computer" point right button, "Properties" "Hardware" "Device Manager" "Universal Serial Bus Controller", find your "MASS STORAGE DEVICE", is U disk, right button, uninstall, etc. after unloading. Click on the top-most computer icon, and then right-click "Scan for hardware changes" to find peripherals plugged into your computer, and then look for installation drivers. This action is meant to reset the driver;

3. In fact, I have the same problem with you in the afternoon, I tried the above two steps are not good, but I do not know if your USB drive is the same as I am using the card reader. I was on fire. Later, the reader was opened directly, SD card, TF card layer open, the gold-plated fingers with a clean cloth wipe, the connector pin to see if there is no virtual welding off the phenomenon, and then the SD card lock button Toggle a back and forth, then put back, NND, you can read;

4. I used a digital camera connected to the computer directly double-click the Mobile disk icon can not open, and then from the "Start", "Run", direct input letter, such as "F:", the results can be opened, do not know if you can solve this

Note that if you can access the card reader, you can't see the file, we can try to open My computer, left-click Tool, select Folder Options Click, select the View tab, in the View tab by an advanced setting, in which there is a "hidden protected operating system files" To remove this option, There is also a single selection below, which is selected as a reality for all files and folders.

So you can see the hidden files.