The REDMI Pad 2 Pro will fail to connect to a REDMI Smart Pen or keyboard using Bluetooth. This is because after a long disconnection, the device and stylus or keyboard will not reconnect, requiring re-pairing.
If you need to re-pair, please refer to the following steps:
Unpair the saved Bluetooth keyboard and REDMI Smart Pen in the Bluetooth settings interface.
Turn the keyboard on and off, re-enter pairing mode, and then scan for connections.
Press and hold the REDMI Smart Pen button for more than 10 seconds to enter pairing mode and then scan for connections.