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1.8GHz dual-core Intel Core i5 (Turbo Boost up to 2.8GHz) with 3MB shared L3 cache

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Laptop will only boot and work with some key pressed

Hi all,

Here’s a challenge for you. My 2012 macbook air died some while ago, but managed to bring it to life in a very peculiar way.

In short, it will not boot, with or without power cable on. However, if I keep some key pressed, it will boot fine and will work without issue, aside from fan speed on max and zero indication of battery charging (coconut won’t even recognize it) or cable light.

The moment I let go of the keys, within 2 seconds it’ll go dead. I’m writing this with my pinkie pressing the tab key :)

What should I need to replace? Battery, keyboard, or both?

Looking forward to your feedback!

UPDATE: when letting go of the keys, I’ll actually get the shutdown prompt, which if unattended will then turn off the laptop. Almost like the keyboard is constantly sending the power off signal.

Also, Coconut screen grab:

Block Image



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It may take some doing! Let’s get a better view of things, install this gem of an app! CoconutBattery take a snapshot of the apps main window and post it here for us to see Adding images to an existing question


Hi Dan! Thanks for the tip. Already had it installed and noticed it couldn't fetch anything from battery or charging status.



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At this point you need a new battery! But your systems SMC has some issues as well as macOS Battery status value is missing. This could be because of the of all of the SMC resets you’ve done.

MacBook Air 13" (Late 2010-2017) Battery and here’s the guide MacBook Air 13" Mid 2012 Battery Replacement

Imagem de MacBook Air 13" (Late 2010-2017) Battery


MacBook Air 13" (Late 2010-2017) Battery


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Hi Dan, thanks for the input again!

New battery on its way, will provide some feedback after installation.



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