hi thisispatrick unfortunately without an open source driver it's impossible for me
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regarding ethernet, have you also tried with libreelec (installed on the SD card) and saw that it doesn't work?
Yes, it's a hardware issue. It won't work on stock ROM as well, it keeps saying 'Not Connected'. I've tried 3 known good ethernet cables on 2 different networks. Kodi keeps detecting and losing connection (it shows the wired network for a few moments, status goes from 'idle' to 'configuring', the it disappears, reappears and keeps looping like that). Factory resetting through recovery didn't fix it