will not power on unless battery and Magsafe are removed and reinstall
Hi I have a MacBook Air Mid 2011 the only way I can get it to start is if I unplug the Magsafe adapter and then disconnect the battery. which is a pain as you have to remove the base.
I then reconnect the adapter and the Air will start. I can also reconnect the battery and that charges ok. I also can remove the Magsafe once running and the Air runs on battery fine. It will also restart on both battery and Magsafe ok, it only wont start if I shut down.
I have installed a new IO power input board all ready with the same result.
I have tried the shift+con+opt+power does not work
I have tried nvram as well.
Have tried resetting SMC as well
I have also run all diagnostic test which reports no problem.
I have updated, reinstall OS done a clean factory install still no good.
Any help would be greatly appreciated
Is this a good question?