What is the reason why Xiaomi's SMS contacts and telephone software keep flashing back?

System reason, try to turn the machine on and off again.

First download the Google framework, decompress it, copy the two softwares to your mobile phone, and then install them.

After installing the above framework, return to the mobile phone desktop, press the menu key, select "System Settings", click "All Settings" and find "Add Account" under the account.

After clicking Add Account, please register your own Google account.

After the name is filled in, permission is allowed.

Enter the user name.

Then just log in.