iPad 7 A2197 dead

[waterchill]

So I have here this board which is dead. Current without battery is about 25mA with battery 470mA. I checked all voltages, missing this one:

PPVDD_GPU
PPVDD_GPU_SRAM
PP1V8_TOUCH_EXT_SW
PP3V0_ALS
PP3V3_ACC
PP1V25_REAR_CAM

I don't know if these voltages are coming up, when iPad is booting. I have changed the PMIC without any result.

The PPVDD_GPU line have 8,2 ohms and in diode mode it is short. I have injected 0,8v in this line, only the A10 chip is getting slightly warm.

Any ideas?

[martyjelen]

Re: iPad 7 A2197 dead

Hello, I have exact same problem. Did you solve it?

[AlexVG]

Hi.
I have absolutely the same problem on
A1893 and A 2179 boards

PPVDD_GPU
PPVDD_GPU_SRAM
PP1V8_TOUCH_EXT_SW
PP3V0_ALS
PP3V3_ACC
PP1V25_REAR_CAM

Have somebody managed to solve that?

Thank you.