원문 게시자: arbaman ,
It’s not normal the fan stays at full speed, on the contrary, its standard speed is abt 1200rpm in idle or normal use VS the 6000rpm it reaches at full speed. If you have issues with the battery disconnected that answers your main question, it’s not a battery issue, the Air can run flawlessly without battery. With battery disconnected keep power button pressed for 15 seconds, that would reset SMC. If you can’t reset SMC with keyboard, you might have a bad keyboard, a bad trackpad, a bad IPD cable, a bad SMC, a faulty I/O board or connecting cable. Unless you have known good parts to try you’re in a bit of a rabbit hole here and you may get out only by purchasing random parts to maybe discover you have a board issue, not an easy path.