why keyboard backlite on macbook air didn't on
after calibration battrey on macbook air 2012 why the backlite keyboard on my MBA didn't on in a dark situation?
MacBook Air, OS X Mountain Lion (10.8.2)
Restart.
Press F6 key.
System Preferences > Keyboard
Uncheck and recheck the box next to "Adjust keyboard brightness in low light".
Reset SMC. http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".
Calibrating Battery
"Mac notebook computers with non-removable batteries like the MacBook Air do not require regular calibration."
http://support.apple.com/kb/HT3557
If your portable Mac has a built-in battery, you don’t need to calibrate the battery.
http://support.apple.com/kb/PH11078?viewlocale=en_US
Best.