MacBook won't turn on or charge after replacing keyboard and battery
After replacing the keyboard and battery, a1990 does not show signs of life and does not respond to turning on or charging.
I tried:
1. Reset SMC & NVRAM - no signs of life.
2. I tried to restore a1990 using MB16m1 DFU- a message appeared on "Cannot Use ThunderBolt Accessory", on MB16m1, but a1990 did not switch to the DFU mode.
Any ideas what's going on?
Is it possible to consider "Cannot Use ThunderBolt Accessory" a sign of life and performance a1990?
Will a1990 run on mains with the battery disconnected?
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3 comentários
Why did you replace the upper case (keyboard & battery assembly)?
And was the system working before?
por Dan
In the basic state before the repair, everything worked (except for the sticking of the buttons and the low battery life), after the repair the system did not turn on.
there was no topcase assembly in my city, and it seemed not economically feasible, I bought a macbook m1 pro 16, I wanted to restore a1990 on a budget
por Роман Абрамов
Did you transfer the Power button over to the new uppercase? The power button of your logic board must be transferred as well.
por Dan