Thanks for the thread guys, the same issue has been driving me nuts ever since buying a G20.
Display MoreThanks for solving this problem. I used your instructions to do the same for my G20BTS remote. However; "70-local-keyboard.hwdb" didn't work for me so I added the lines to the existing "99-osmcrf.hwdb". The README file in that folder states that "
your files must be named 99-xxxxx.hwdb", so I don't know if that's why it didn't like it? I am on 11 nightly (Dec1).
It's this one, if anyone else need to do the same
evdev:input:b0005v2B54p1600e0000*
KEYBOARD_KEY_c0041=enter
I picked up a similar WeChip G20.
Couldn't get evtest working, but got enough information from running cat /proc/bus/input/devices
Created the 70-local-keyboard.hwdb file with the code below and it worked OK 
evdev:input:b0003v4842p0001*
KEYBOARD_KEY_c0041=enter