Reason:
First, the brush package is not officially designated or does not match the mobile phone, which leads to this prompt. In this case, you should visit Xiaomi's official forum, select the corresponding brush package according to the corresponding model, download it to your mobile phone or computer, and then brush it.
Second, some files were lost or wrong in the downloading process of the brush package, which led to the incompleteness of the brush package, so this error prompt appeared when brushing the machine. In this case, you need to visit Xiaomi's official forum, download the complete brush package of the corresponding model again, and then brush the machine again.
Solution:
Rename the refresh package to update.zip and copy it directly to the memory card (remember that it is not a secondary folder, assuming that the memory card is the disk "H" in the computer, and the update file should be h:/update.zip), and then turn off the phone.
1, press the volume key "+"and the power key to enter the recovery interface.
2. Select the language you want, and then select "Clear Data".
3. Select "Clear All Data" and press the power button to confirm.
4. Press the power button and select the "Confirm" option to clear the data.
5. This operation will erase the related data in the ROM, so please make a backup.
6. Enter Recovery and select "Install Update. Zip to System1".
7. Click "OK" and the system will refresh.
8. Enter "Reboot" and select "Reboot into the system 1".