My mbp won't power up after update.

after running an app store update, (Xcode) my mbp won't power up and the battery lights are showing flat even though it was on charge over night.
the update was taking a long time, and it had a message saying something like deleting old files.
i went to bed and left it over night.
when i went back this mornng it had powered down, and the drained the battery even though it was plugged in.
now i can not power up, and i have tried the smc reset.
please help.
many thanks.

This is the standard Apple support article for your situation. If you cannot try another adapter to try, I suspect a trip to an Apple store genius bar is in your future.
http://support.apple.com/kb/HT3964
Ciao.

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My mbp won't power up after update.

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