Vim4 BLE keyboard compatibility

Which system do you use? Android, Ubuntu, OOWOW or others?

Android

Which version of system do you use? Khadas official images, self built images, or others?

Khadas Official

Please describe your issue below:

I am trying to get a Bluetooth ESP32 keyboard to work with my VIM4_R_V220424.
I am using the Bluetooth LE Keyboard library for the ESP32 found here: GitHub - T-vK/ESP32-BLE-Keyboard: Bluetooth LE Keyboard library for the ESP32 (Arduino IDE compatible).

I have tested the device on a Samsung galaxy running android 10, and a Khadas Vim3 running the official android image and both work well.

I can connect the device to the Vim4 but it doesn’t function. The only difference I see in the GUI is that there isn’t an option to specify that the device is an ‘input device’.

Any suggestions or workarounds to get this working would be great.
Thanks