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MacBook Pro 13" A1502 820-4924 liquid damage not turning on

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  • MacBook Pro 13" A1502 820-4924 liquid damage not turning on

    Hi,
    We got a mentioned MacBook with was liquid damaged.
    Liquid damage was around Q8175, Q6060, u5870
    I cleaned up board and fixed broken traces around Q8175
    CPU_VCCST_PWRGD present 1.02V
    Rail 3,34V present
    PPbus_S5_hscomputing present 11.8V
    cpuvr_phase1 = 1.86v
    cpuvr_phase2 = 1.86v
    L7630 voltage present 1,05V
    once I connect mouse to usb it blinks and thats it
    no chime no display
    cpu gets warm.
    FAN spin for me ones.
    Any ideas?
    Last edited by ielectron; 4 weeks ago.

  • #2
    Fan doesn't spin untill CPU gets really hot on this model.
    Mouse just flash once, no steady light?

    I cannot locate Q8175 on schematic...

    Try to start in SMC bypass mode.

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    • #3
      Any liquid near the CPU?

      Comment


      • #4
        Laptop fixed, U1950 was faulty. Thanks for any help.

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