Black Screen (bricked) after Big Sur update : also common for iMac?
Hi, I saw an add for a mid 2014 21,5” imac that was bricked after an attempt to update to Big Sur.
Mine is a Late 2015 and it has only one LED on the motherboard (power ok) and also does nothing. Can this also be the Big Sur faulty update situation ? I got mine second hand, don’t know the history.
I guess it needs a new logic board. Or should I try to change the processor first as it would have the 2nd LED lit if it would be a GPU problem. Thank you for your reply.
Just realized the CPU is soldered to the board.