Hi guys , im coming here after a while and tried everything possible .
Basically : my gameshell is working perfectly , ( os booting , screen working , … )
BUT the keypad is not working , tried to invert the cable , unplug / plug many times , tried to remove the battery , boot it without the keypad ( btw there is 2 led lighting on the keypad board )
Thanks to @Godzil who told me to plug it on my pc , is being detected on my pc .
UPDATE : Tried this tutorial [Tutorial] How to compile and upload code to the keypad , it worked but the keypad still not working
UPDATE 2 : After some help from @Petrakis, we tried with debug 1 , the keypad IS working but seem like its the port from the motherboard !
Best regards , Lenux