As an alternative to USB tethering, the Xiaomi smartphone can also share an Internet connection via Bluetooth, for example by paired with a laptop and activating this function.

Note: If the device to be connected has a USB port, it is recommended to use USB tethering, as this function is more battery efficient.

Android 10 (MIUI 12.0)
Step 1:  Open the  Settings
Step 2:  Tap on  Connection & sharing
Step 3:  Tap on  Portable hotspot
Step 4:  Enable or disable  Bluetooth tethering
  1. Open the Settings
  2. Tap on Connection & sharing
  3. Tap on Portable hotspot
  4. Enable or disable Bluetooth tethering

Xiaomi Instructions