Solved! Macbook Air - Only Powers on when Lid Closes?

[xfile102]

Have a Macbook Air that wont turn on. However, once fully charged, when you close the lid, when the lid gets about 2-3cm from fully closed, the Mac Boot "Bong" sounds. Anyone ever encounter this? Any advice on how to handle it?

I have tried to Boot the system with the PRAM Reset, SMC Reset, Safe Boot, none work. Will not power on.

Macbook Air
A1466 (EMC 2925)
1.6 GHz Core i5 (I5-5250U)

 

[helpstar]

maybe the lid sensor is faulty or the screen ribbon cable to the motherboard