1. Maybe the data packet is too big, and it takes some time to read and write, so nothing will be normal for a while. Users only need to wait patiently for a while to return to normal.

2. It is also possible that the mobile phone crashed. You can take out the battery and turn it off, then install the battery and restart it, and then restore the data.

3. Or the backup file is damaged, which makes it impossible to read and write, that is, it cannot be recovered. In this case, the recovery operation cannot be performed; If the phone has other backup files, you can use other backup files for data recovery.

4. It is also possible that there is something wrong with the mobile phone system, and the data cannot be recovered. You can try restarting your phone. If necessary, you can reset or upgrade the mobile phone system to the latest version to solve the problem.