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  1. A

    820-00239 no backlight after closing and opening lid

    Chaged one hall effect sensor (board), since it had wierd diode mode mesurements. Now it works. thanks
  2. A

    820-00239 no backlight after closing and opening lid

    had some liquid damage. Some corroded caps all over the place. Replaced them all. Lid sensors have no corrosion. where could i measure. what could be the next step. i have no idea.
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    820-4924 No Backlight

    This is an interesiting Case: I2C lines are fine feedback is fine sense cuircuit had broken traces (to the shunt resistor) made those connections again the screen is working. I tested it on the backlight output i have 11.7V i have found out that if i measure r7702 on pin 2 (with a multimeter)...
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    820-00165 cpu gets hot but no activity.

    PLT_REESET_L is high. I have no usb activity. i have already disconnected evrything and swapped IO board too
  5. A

    820-00165 cpu gets hot but no activity.

    Ah sorry it is an 820-3437 (but thats almost the same right ?)
  6. A

    820-00165 cpu gets hot but no activity.

    Cpu gets around 80 degrees, but no cpu activity. Already flashed the EFI chip. 25khz Clock signal is present. What could be the issue here.. is the cpu dead
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    820-3662 fan spins for 5 sec and then turns off

    is there no other possible solution, that i could try
  8. A

    820-00850 no image, CPU gets hot

    yes i do have exterenal video
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    820-00850 no image, CPU gets hot

    820-00850. The version with t2 chip and touchbar. the Device had some liquid damage. The LVDS connector on the Panel looks bad. Already swapped out the Screen, so its new. It looks like there is no corrosion the logicboard. L8504 was burnt. Already replaced that, but still no image. DP_INT_HTP...
  10. A

    820-3662 fan spins for 5 sec and then turns off

    the client told us that it just turned off suddenly and then never turned on again. PLT_RESET_L is high wile its spinnng the fans, and low while the fans are not turning
  11. A

    820-00165 no fanspin. no liquid

    replaced the cpu, now it works :) thanks
  12. A

    820-3662 fan spins for 5 sec and then turns off

    The board alone does the same. In Smc Bypass mode also
  13. A

    820-00165 no fanspin. no liquid

    cpu 0.3 ohms. Iguess cpu is dead right
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    820-00165 no fanspin. no liquid

    PM_SLP_S4_l pulses PM_SLP_S3_l pulses Cpuvcore does not pulse
  15. A

    820-3662 fan spins for 5 sec and then turns off

    Cpu voltage is present while the fans are spinning. i have already reflasshed the efi. still same. the board has neither liquid nor corrosion on it.
  16. A

    820-00165 no fanspin. no liquid

    this one has 0 liquid in it. The logicboard looks perfectly fine. Could it. be currupt bios. PPBUS And all s5 rails are. present. sus also
  17. A

    M1 MacBooks repairability with the new cpu

    We just opened three brand new macbooks and swapped the parts to see if it's replaceable, good news is that it seems to be!
  18. A

    820-00281 does not charge. PPBUS_G3H low on battery

    now it crashes if itry to boot in smc-bypass mode
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