Procedure
1. Go to Xiaomi official website to download a wire brush tool and the corresponding wire brush package, as shown in the figure.
2. Shut down Xiaomi's cell phone, and click volume-and power key to enter Fastboot mode.
3. now we can connect our cell phone to the computer through the US data line. At the same time, we can turn on the wire brush tool, select the corresponding wire brush package, and click the "refresh" button. At this time, the program will automatically identify the Xiaomi mobile phone.
4. If you have Xiaomi knowledge, we can click the "flash" button in the figure below to perform the flash brush operation.
5. After the flash is complete, restart your phone to enter the new system.
Reminder
No matter what method you use to flash the machine, we must make a valid backup of the data. Otherwise, the data on the mobile phone will be lost.