Have a A1990 that is boot looping with no display, possible liquid damage according to customer. Found no corrosion with visual inspection.
Found a short on GPUVCORE_SENSE_N CA669 and was getting heat on GPU and CPU area when i plugged it into charger UA600 was also heating a little, voltage injection not showing heat but i am going to inject again and double check for heat.
QB300 is getting hot when plugged into charger a little heat coming from U3100 area as well.
Customer wants data from the unit and doesn't need a repair, just trying to get this thing into target disk mode so i can get data.
is this one a cooked GPU?
Anyway to isolate the gpu and get the unit into target disk mode or is the GPU required to boot?
Found a short on GPUVCORE_SENSE_N CA669 and was getting heat on GPU and CPU area when i plugged it into charger UA600 was also heating a little, voltage injection not showing heat but i am going to inject again and double check for heat.
QB300 is getting hot when plugged into charger a little heat coming from U3100 area as well.
Customer wants data from the unit and doesn't need a repair, just trying to get this thing into target disk mode so i can get data.
is this one a cooked GPU?
Anyway to isolate the gpu and get the unit into target disk mode or is the GPU required to boot?
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