MacBook Air not turning on/booting

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Joined
11 Mar 2013
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117
Hi folks.

Bear with me, bit of an odd one this.

I picked up a "spares/repair" MBA from eBay. It was a faulty return item as apparently the battery wouldn't charge and it wouldnt turn on. No mention of water damage was made in the report from the company I got it off. My intention was to get it up and running and use it as a replacement for my old Macbook. Yes, I know, I bought a buggered laptop off eBay etc but its not the first time I have done this. I have bought knackered stuff before and with some tinkering have ended up with a working system, usually its been something simple that has been overlooked.

I've done a SMC reset and now it appears the battery will charge (Magsafe adaptor lights up Orange when plugged in) and the unit seems to accept power but it still won't turn on/boot. When I did the SMC reset the light on the Magsafe flashed appropriately to say the unit had been reset so something is working in there. My original thoughts of a fried DC board seem to have faded.

Bit of an odd question really but the HDD has been removed, would that cause it not to turn on? As someone who is used to building/stripping PC's my logic says "wouln't make a difference, should still get some activity" but maybe a more experienced Apple user/tech could shed some light on this? Surely there would be BIOS activity? Or is there something different with Apple systems?

I have an appointment booked at my local (well, 80 miles away) Apple store just to get them to diagnose it so I know where I stand with it. If I can save an entire days trip then great!

But here's the odd thing, the unit is still covered under warranty. I am not the original owner and the company that sold it have whipped the HDD out, which may have voided the warranty? Where do I stand with this? If they don't want to fix it surely they can at least look at it for me?
 
the HDD has been removed, would that cause it not to turn on?

Won't make a blind bit of difference. The EFI will boot but you will be presented with a grey screen and a question mark flashing in the centre.

As for your other questions I've no idea.
 
Won't make a blind bit of difference. The EFI will boot but you will be presented with a grey screen and a question mark flashing in the centre.

Thats useful to know, thanks. Looks like a trip to the store is still on for a full diagnosis. Didn't want to go all the way up there for them to say "HDD removed? Yeah it won't work, bye"
 
One thing definitely worth trying:

Find the Power on Pads on the Logic Board. They will sometimes (not always) have PWR written next to them. Find a screwdriver or similar that can bridge them.

Try them and see if anything happens. If nothing happens, find the ribbon cable that attaches the keyboard/top case to the Logic Board. Take that out and try the Power on Pads again. If it boots, the top case is broken. Seen a few like that.
 
Took it to the Apple store today, and they will fix it under warranty as it appears the logic board has fried. System is only 7 months old according to their records.

Only problem is because the HDD has been removed they are claiming it is not a complete item so I'm now on the hunt for a new HDD to stick in it before I take it back to get it fixed.

Thanks for your help folks :)
 
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