Macbook Pro 15" 2018(820-01041-A) Freezing, Rebooting, Kernel Panics but only with connected Battery

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  • CornholioGSM
    Badcaps Veteran
    • Feb 2014
    • 264
    • CZECH
    #1

    Macbook Pro 15" 2018(820-01041-A) Freezing, Rebooting, Kernel Panics but only with connected Battery

    Hello,
    I have here one interesting problem.
    Macbook Pro 15" 2018(820-01041-A)
    Laptop comes to me with freezing and rebooting problem. All inside was relatively clean and no water damage. Only visible problem was one swolled cell on battery...all was looking like batt problem.
    I have put inside new - not original batt, but problem with freezing still. I am able to boot into os, then pc can run few seconds, then freezes and reboot and reboot until force power off.
    Quickly i am able to see battery information...batt is detected normally in os with power cycles hours etc.
    Battery looks like is charging normally.


    Kernel
    Panic(cpu 1 caller 0xfffffff0110331bc) macOS watchdog detected
    Debugger message: panic
    Memory ID: 0x6
    .
    .
    .
    Problem is, that laptop makes these freezings only with battery connected. Without battery runs few hours without problem.
    Installed fresh OS, tested resets etc.

    With battery connected is mac freezing powered from adapter and from batt too.



    Have anyone idea what to check?


    Thank you
    Last edited by CornholioGSM; 06-25-2024, 12:37 PM.
    Tags: None
    • CornholioGSM
      Badcaps Veteran
      • Feb 2014
      • 264
      • CZECH
      #2
      any idea with this problem?

        Comment

        • Lvsitano
          New Member
          • Aug 2019
          • 8
          • Portugal
          #3
          Try to boot MacOS in safe and check if it still panics. It might be GPU related.

            Comment

            • reformatt
              Badcaps Legend
              • Feb 2020
              • 1405
              • Australia
              #4
              A watchdog is a monitoring process to check if some critical function is still running. If not, a reboot is asserted. I have seen some weird stuff with MAC's and power state transitions with faulty hardware like Touchbar and trackpad. Also seen some weird stuff with bad ISL9240's as well. MAC OS can be extremely picky with hardware.

              With things like this, I often swap the motherboard into another chassis to see if the fault goes with the board, or stays with the chassis.

                Comment

                • PITERPENY
                  Badcaps Veteran
                  • Jul 2023
                  • 455
                  • Ukraine
                  #5
                  Originally posted by reformatt
                  A watchdog is a monitoring process to check if some critical function is still running. If not, a reboot is asserted. I have seen some weird stuff with MAC's and power state transitions with faulty hardware like Touchbar and trackpad. Also seen some weird stuff with bad ISL9240's as well. MAC OS can be extremely picky with hardware.

                  With things like this, I often swap the motherboard into another chassis to see if the fault goes with the board, or stays with the chassis.
                  this is genius!

                    Comment

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