Currently Being ModeratedAug 9, 2013 5:37 AM (in response to DSL1234)
Currently Being ModeratedAug 9, 2013 6:16 AM (in response to DSL1234)
My mid 2012 MacBook Air also went black and I could not turn it on. Fortunately it is still under warranty and Apple replaced the logic board. Cost of part is $396.59 plus labor of $39 without warranty. I have now invested in AppleCare plan to extend warranty to 3-years.
Currently Being ModeratedDec 23, 2013 3:27 AM (in response to dominic23)
Removing the power to a device often enables it to restart. Obviously just disconnecting the magsafe from the MBA doesn't achieve this as the battery is still connected. Having attempted the SMC reset with my dead MBA I tried disconnecting the battery. This solved the problem, after reconnecting it the MBA restarted and I then did the SMC reset and NVRAM reset for good measure.
So - how to disconnect the battery? If you remove the backplate there is a connector for the battery which you can simply pull off the logic board. The location of the connector varies with the model and year so google 'remove battery from macbook air' for your model. You don't need to actually remove the battery, just do step one which is remove the connector.
But - how do you remove those tiny screws that hold the backplate on? Here's the catch. You need a 'pentalobe' screwdriver which you'll probably need to send off for if you don't have one. (I did, from having upgraded the SSD). What a drag but a lot cheaper than an Apple service bill if it works.
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