G.Beard
New member
I've worked on this board before. Not sure if it was a liquid repair or not but I don't think it was.
Screen turned on then back off after a few seconds so I tied backlight PWM to S0, thought solved and sent it out thinking it was done.... Now thinking it could be something to do with what's presenting now.
So if I power this machine afer shutting down from OS it will chime, boot, everything works.
Close lid, sometimes powers off instead of deep sleep after some time.
When it powers off instead of sleeping - Turn it back on with no chime and no keyboard or trackpad.
After booting to OS login screen, SMC reset and power on again it will chime and everything working.
Any pointers please?
Screen turned on then back off after a few seconds so I tied backlight PWM to S0, thought solved and sent it out thinking it was done.... Now thinking it could be something to do with what's presenting now.
So if I power this machine afer shutting down from OS it will chime, boot, everything works.
Close lid, sometimes powers off instead of deep sleep after some time.
When it powers off instead of sleeping - Turn it back on with no chime and no keyboard or trackpad.
After booting to OS login screen, SMC reset and power on again it will chime and everything working.
Any pointers please?