My Macbook Air (Haswell) has a tendency to suddenly go to lock screen without any warning. It suddenly goes black (when using it) then in a matter of seconds the picture comes back, but now I am at the lock screen. This scene has occured 3 times until now.
Do you know the reason why or atleast a solution on the problem?
Best regards.
MacBook Air, OS X Mountain Lion (10.8.5), Haswell + 8 GB RAM
Try a Safe Mode boot ...
Startup your Mac in Safe Mode
A Safe Mode boot takes much longer than a normal boot so be patient.
Once you are in Safe Mode, click Restart from the Apple () menu.
If you can't boot in Safe Mode, startup your Mac while holding down the Command + R keys. From there you should be able to access the built in utilities in OS X Recovery to repair the startup disk.
Read before proceeding > OS X Recovery
The warranty entitles you to complimentary phone support for the first 90 days of ownership.
If you bought the product in the U.S. directly from Apple (not from a reseller), you have 14 days from the date of delivery in which to exchange or return it for a refund. In other countries, the return policy may be different. If you bought from a reseller, its return policy applies.
Mine does the same thing...any solutions found?
Macbook Air - Black screen then lock screen
