To keep track of all the paired Bluetooth devices on the Xiaomi smartphone, we can name each device individually, which is useful when some devices are stored with only one MAC address or model code.

Android 10 (MIUI 12.0)
Step 1:  Open the  Settings
Step 2:  Tap on  Bluetooth
Step 3:  Open the  devices settings
Step 4:  Tap on  Rename
Step 5:  Enter a  name  and tap  OK
  1. Open the Settings
  2. Tap on Bluetooth
  3. Open the devices settings
  4. Tap on Rename
  5. Enter a name and tap OK

Xiaomi Instructions