On my X96 Air (S905X3), I have everything working pretty well. However, if I suspend, either from the Kodi menu or systemctl, I am unable to resume. It seems to be completely hung. If I power off the device, I am able to power on from the remote (with BL301). However, from suspend, the remote does not resume, nor does a usb keyboard.
Check that you have latest nightly.
If doesn’t work then try 20200321
In any case follow this way:
I had this issue with this device, but latest nightly has fixed this. I do not use any injection.
Hmm, rolled back to 03/21, it worked. Reverted to nightly, it works there now as well. Oh, well. Maybe I was just hitting the keys too hard.