MacBook Air won't boot with full battery, unless additional "2 min" kick-start adapter charge.

Sometimes my MacBook Air 2010 doesn't boot (doesn't show any sign of life, no screen, sound, etc.) even though the battery is fully charged. Only after I plug in the adapter for about two minutes it does boot. In this case I can disconnect the adapter immediately afterwards and it works fine, say, 7 hours, and I can shut-down and boot several times, indicating the battery was fully charged already and is healthy. This is frustrating when taking the laptop with me outdoors, because this means its useless and unreliable (usually it boots fine!). Help me please!
I've tried all possible alternatives listed here:
http://news.softpedia.com/news/Things-to-Do-if-Your-MacBook-Does-Not-Turn-On-133 615.shtml
(Based on this: http://support.apple.com/kb/TS1367?viewlocale=en_US)
Many thanks in advance.

I kindof did it, and I bet you even a Genius wouldn't have figured this one out!
What did I do? Well I checked everything: opened up the macbook, measured power going in, measured power reaching battery, measured battery giving charge back, measured power going through logic board and, finally, tried power-on skipping the keyboard/mouse by connecting the power-on pads on the logic board - but it did not boot!
So my logic: 1) somewhere on a very elementary level something is broken that prevents a power-on between the power-on pads and whatever is next. 2) this broken thing was temporarily fixed twice when I was able to charge my battery for several minutes, as if things were 'heated up a bit'. 3) because my battery is full now I cannot do this heat-up trick. Thus, why not put my MacBook Air on the heater for a few minutes? And guess what !? I press the power-on several times: nothing, but then, after a few minutes: "boom!" (Steve Jobs style), its boots perfectly! And I have been using it for a few hours now.
My father suggested two possible causes:
A) two metal elements that should connect have been damaged and only just don't connect in normal state. When heated up these elements expand just enough to reach each other, allowing the MacBook Air to boot.
B) some dust is stuck between two elements that should not connect: when the atmosphere is very humid (as it is now where I am) this dust absorbs water, meaning it connects these two elements causing the MacBook Air to be unable to boot. When it is heated up, the water evaporates and it is able to boot again.
Either way, I would be really helped if someone can tell me what are the elements on the logic board involved in power-up, and how the paths run along the logic board connecting these elements. They shouldn't be many.

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Hello to you all, my Macbook Air won's boot up and upon diagnosis, i realized my startup disk is full to 99% even with 2GB Hard Disk space. It wont also enable me boot into safe mode too. Please help as all my work documents and project files are on HD

Hello to you all,
My Macbook Air won's boot up and upon diagnosis, i realized my startup disk is full to 99% even with 2GB Hard Disk space. It wont also enable me boot into safe mode too.
when i power up, i get this prolong gray screen which wont change screen but remain so. Infact i am handicapped.
Please help as all my work documents and project files are on this machine and i can't afford to loose them all...
Please, should you have any solution please send me the details to [email protected]
Thanks you a millionh times.
Al.

The MBA seems to cause several problems to several users on boot ups
On start up my MBA would not boot up the apple logo came on but only a blank screen appeared no fan i followed several start up recommendations but to no avail so I took the MBA to the nearest Apple repair centre again the same symptoms on start up ......very sorry sir you need a new mother board that will be $500 not feeling confidant in the product declined and was going to put it on ebay for spares.
On return home I pressed the start up button and it started normally everything was working fine i decided to reinstall all the software what has caused the problem I have no idea but it is after several attempted reboots it finally started on its own so don't give up if you have this problem it may come to life

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rdsvs wrote:
all specs are the same. old and new has code as below
pc2-5300 ddr2 667 200pin
Unless I misread your reply, that is not quite accurate.
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Welcome to the Apple Support Communities
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Hi
There's an issue with my sister's Macbook Air (2012 model I think - it's the one with the HD4000 graphics).
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The seller implemented a Firmware Password. You need that password to boot the computer as well as to remove the firmware password. This is not the same as the admin password. Ask the "friend" what the password is.

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Axe,
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Hi and thank you for your response.
The fans only kick in when the machine freezes.
I updated from Snow Leopard to Lion using the App Store. The install was successful and worked for about 30 mins then the unresponsive behavior started. Once I rebooted, I received the issue previously stated above (i.e., the trackpad and keyboard is unresponsive).
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So this is the story,
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Reset PRAM.
http://support.apple.com/kb/PH4405
Start up in Safe Mode.
http://support.apple.com/kb/HT1455
Repair Disk
Steps 2 through 8
http://support.apple.com/kb/PH5836
Reinstall OS X
http://support.apple.com/kb/PH10763?viewlocale=en_US

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yeah I had the exact same issue with one of my 750GB externals too. I just left it for a while (about an hour or so) and it was fine..
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The warranty entitles you to complimentary phone support for the first 90 days of ownership.
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MacBook Air won't boot with full battery, unless additional "2 min" kick-start adapter charge.

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