Why can't I see SMS on Xiaomi's mobile phone?

I suggest you check whether the data attempt is normal.

You can enter the recovery mode and directly clear the data.

The method is: 1 First back up important personal data; 2. Then turn it off; 3. Press and hold the volume button and the power button at the same time; 4. After entering the recovery, use the volume key to select, the power key to confirm, select Clear Data and Clear Cache to clear all data, which is Sanqing.

When restoring the backup, do not restore the settings and third-party security software in the mobile phone. Is it normal to try?

PS: The way to resume is to turn off the power first, and then press and hold the volume button and the power button. Once inside, the touch screen is useless. You must use the volume button to select the power button to confirm, select Simplified Chinese-Clear Data-Select Clear Cache, Clear User Data and Clear All Data. Then choose to turn off, and then press and hold the power button to turn on.