1, if the data on your U disk is not so important, it is recommended to use the U disk Repair tool to repair, and reformat, and then try again.
2, this situation may be your file system or the main control chip is broken, encountered this situation U disk data is more difficult, can only use the low lattice of the repair method. 3, the General U disk format is still unable to open, U disk itself is more likely to be a problem, you can try to replace the USB interface, or to change the computer to see whether the normal open, if you still can not open and no important data, it is still recommended to use mass production tool production processing. If you have data, you can first consider restoring the data. Of course, the above approach does not necessarily guarantee that your USB drive will be fully restored to normal, touching a U disk Problem Small series suggest that you more in the system of the home of the U Disk Tutorial area to find the appropriate tutorial, if there is no way to deal with the dead horse when the live horse medicine, can try to try the method, do not line or buy a U disk again, U disk now prices are very cheap, but must buy a regular manufacturer of Oh, to avoid a U disk continue to problem.