Keyboard and trackpad not found
I have a macbook pro early 2015 edition. My device while logging in shows keyboard and trackpad not found. I have tried SMC reset, PRAM reset. I have got the cable changed and the service center had changed the topcase as well. Yet this issue has come up again for the 6th time in 2 years. The only key that works is the power key. Command and shift keys work only while booting but once the login screen shows up they do not work. I have even deleted the pList files. I somehow feel its not a hardware issue. What else can i try now?
Is this a good question?