Is Geekeys 78A have its own firmware or keymap software? Because my keyboard got some issues: The both Alt, left Ctrl,right arrow are now responsible to the keyboard tester, and can't use too.
I use the VOM to test switch interface, and it still work when i press the key down. Then i tested the diot, it still work. Then i tested the PCB, and it worked too. So is it layout or switch error?
Sorry for my bad English.
