I just installed UT 16.04/Stable onto the Jingpad and the MPP 2.0 protocol pen works.

The pen does not work with the current 20.04 build of UT on the Jingpad hardware.

I have a mpp 2.0 pen that worked on the jingpad, but it does not work with UBports 20.04 on the jingpad. Not sure if this is an issue with just the jingpad and UBports on it, or all UBports installs.