I just had this happen with the 12.4.1 update. Blinky LED & no video out at all. The bad news is the Genius Bar / Store Techs have no more access to do a factory restore than the user does. IOW: none. Nothing on Ethernet either. (That was straight from the GB guy’s mouth.) If there are USB pads on the board they don’t know about them.
And if this happens out of warranty it’s a $150 board swap. I advise turning off the auto-install for OS updates.
일단 획득하면, 귀하께서는 그들의 시간당 평판 획득 도표를 볼 수 있습니다.
도표가 어떻게 보여질지에 대한 미리보기입니다:
아직 획득한 평판이 없습니다.