Mi band 4 crashed. The screen won't move. What's going on here?

Cause analysis:

1. If third-party security management software is installed, it will be uninstalled directly. If the phone has a security center, reinstallation will cause the phone to crash due to conflict. In particular, don't install any software of 360 on Xiaomi mobile phone.

2. Get root permission normally on the development system, but uninstalling some system programs or forcibly opening root permission on the stable system will cause the phone to crash;

3. Operating the mobile phone while charging will cause the battery to heat up, causing the mobile phone to crash;

4. Using the unofficial MIUI system or mistaking the official MIUI version causes the card machine to crash;

5. The user bought a knockoff machine or a refurbished machine through unofficial channels, and it is easy for the card machine to crash. Custom machine, the operator, will also get stuck because of changing the system.

The bracelet is actually an auxiliary product of intelligent hardware. Mi band's early products belong to collecting a person's sports information. Actually, it doesn't matter whether there is a screen display or not. Because all the information is to be viewed through the mobile phone client. This color screen only increases the intuition of the bracelet. If the screen is too large, the battery capacity may be frequently charged.

1. Xiaomi's mobile phone crashed for no reason, which may be caused by system abnormality. In this case, the user can try to brush the phone to fix the possible abnormality of the phone.

2. You can download the latest version of the system in miui official website, and then import it into the root directory of mobile phone memory.

3. Press and hold the Volume Up+Power button to start the machine at the same time when the machine is turned off. When the screen lights up, release the power button and hold down the volume button for a long time to enter the recovery mode.

4. Select Simplified Chinese and confirm, the volume button selects the power button to confirm, and the option to install update.zip into the system and confirm.

5. Select Confirm and wait for completion, and select Restart to enter the new system.

6. After normal brushing, observe the user for a period of time. If the fault still exists, users are advised to take their mobile phones, invoices and warranty cards to the local brand customer service for testing.