iPad 7 A2197 dead

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  • waterchill
    Member
    • Sep 2021
    • 33
    • Germany
    #1

    iPad 7 A2197 dead

    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?
    Tags: None
    • martyjelen
      Senior Member
      • Mar 2023
      • 127
      • Czech republic
      #2
      Re: iPad 7 A2197 dead

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

        Comment

        • AlexVG
          Senior Member
          • Apr 2022
          • 134
          • SPAIN
          #3
          Hi.
          I have absolutely the same problem on
          A1893 and A 2179 boards


          Originally posted by waterchill
          PPVDD_GPU
          PPVDD_GPU_SRAM
          PP1V8_TOUCH_EXT_SW
          PP3V0_ALS
          PP3V3_ACC
          PP1V25_REAR_CAM
          Have somebody managed to solve that?

          Thank you.

            Comment

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