The solution for restoring Xiaomi mobile phone flash screen is as follows:
 1. Perform screen calibration
 2. Restart the phone
 3. Modify the theme wallpaper
 4. Upgrade the system version to the latest version
 1. Calibrate the screen. Take the red rice mobile phone as an example, enter "* # 66 * #" on the dial to enter the engineering mode, and you can calibrate the screen
 2. Open the phone "Settings" - "Developer Options" - "Enable Strict Mode", turn off "Enable Strict Mode", and restart the phone
 3. Modify the theme wallpaper and restore the phone theme wallpaper to the factory mode
 4. System stability problem, upgrade the system version to the latest version
 5. First set the phone, setting 1: "Settings" - "Display" - "Sleep" - select "Never", setting 2: "Settings" - "Brightness" - select to turn off "Automatic brightness adjustment", set the screen brightness to the brightest, and then charge it with the original data cable for more than 2 hours each time
 6. Contact Xiaomi after-sales service and send the mobile phone to be tested to see if it is a hardware problem