1. Keep the remote close to Mi TV within 20 cm.
  2. Press the Mi button and the Android O button simultaneously, on your TV’s remote while holding the remote close to your TV.
  3. The remote should be pointed towards the center of the TV. The TV will notify with a beep sound after successful pairing.

Check your remote is connected to TV via bluetooth. If it was not connected use mi remote app in your smartphone to open bluetooth setting and try to coonect remote manually. Press and hold mi button and Android button on the remote and check if it is pairing.