Search results

  1. No-Clean

    820-00840 20V 0.500A No usb activity

    Ok so if CPU core does not drop to 0.6V dont even bother with BIOS?
  2. No-Clean

    820-00840 20V 0.500A No usb activity

    No history available, I will keep the drop information in mind for future references. All my work is always done on board alone nothing else connected at all unless needed for testing the board, so no SSD and nothing else connected and those numbers are the ones I get.
  3. No-Clean

    820-00928 Short on PP3V3_S4_SOC_PMU

    Came in with a short on PP3V3_S4_SOC_PMU C4205, I was lost and needed some guidance, with your tip I was able to trace back the fault, thanks!
  4. No-Clean

    820-00840 20V 0.500A No usb activity

    Clean board no history. No USB activity can be detected Charger takes 0.5 A at 20 V (goes up from 5 V). PP3V3_G3H =3.4 V ppsv3_s4=3.32V ppsv3_s5=3.32V pp5v = 5.1 V PPVCCCPU_S0G stays at 0.94 V Already tried clean working BIOS same thing, CPU gets hot
  5. No-Clean

    820-00928 Short on PP3V3_S4_SOC_PMU

    The problem was way before that, U7650 was shorted
  6. No-Clean

    820-00928 Short on PP3V3_S4_SOC_PMU

    Clean board, at this point this is a project as it was left here abandoned and it will be nice to repair it. Came in with a short on PP3V3_S4_SOC_PMU C4205 I get 20V and 0.040A in USB meter After removing short PP3V3_S4_SOC_PMU is still 0V so U4200 has no output. Is U3900 the problem you think?
  7. No-Clean

    820-01598 reboots shortly after boot up bar starts to load.

    This board and audio board is clean and there is no sings of water damage, I tried a new audio board but no luck.
  8. No-Clean

    820-01598 reboots shortly after boot up bar starts to load.

    Yes in this case T2 is unable to restore/revive, I will check again the audio board and see, thanks a lot!
  9. No-Clean

    820-01598 reboots shortly after boot up bar starts to load.

    Thanks, audio board and flex are perfect clean, connectors are also fine.
  10. No-Clean

    820-01598 reboots shortly after boot up bar starts to load.

    Clean board, no history. All SSD rails measure correct. Tried restoring and reviving T2 but fails. Starting from external drive not possible because we cannot change startup options in recovery mode. I am assuming that NAND chips or one of them may be dead.
  11. No-Clean

    820-00928 Kernel panic after sleep

    That's that I was thinking, thanks for the advice.
  12. No-Clean

    820-00928 Kernel panic after sleep

    Board came in from another shop with liquid damage and already messed with. Mac had problems with audio codec and critical update, both got repaired, but now sometimes when the Mac enters sleep and you wake it up it goes into kernel panic and shuts down, this doesn't happen all the time but we...
  13. No-Clean

    820-01041 New board no camera, ambient light sensor and no keyboard backlight.

    L8504 5V, however the screen flex did not have those 5V, screen flex was the problem. The reason why I thought it could be T2 related was because recently some 2019 non Apple screen were giving us hell with about same issues, thanks for your help @2informaticos
  14. No-Clean

    820-01041 New board no camera, ambient light sensor and no keyboard backlight.

    I will like to figure out if this is a board problem or Apple tying things to the T2 chip. History, we have 2 clean no damage complete computers with no boards, we ordered a new board front a trusted vendor, board has the same exact behavior on both computer/cases: no camera, ambient light...
  15. No-Clean

    820-00165 shuts down after about 10 minutes of heavy video use

    Clean board, MacBook seems like it was dropped heavy in one corner. I already carefully inspected the board and found nothing. Put it in UC and oven at 300c. New good quality thermal paste was applied too. The problem is that after about 3-10 minutes of use when using something line netflix...
  16. No-Clean

    820-4924 Only powers on after a long press of power button

    C5125 was shorted on that line PP3V3_S5_AVREF_SMC You are a mastermind, thanks a lot, if you lived near by I would buy you a beer!
  17. No-Clean

    820-4924 Only powers on after a long press of power button

    SMC_ONOFF_L is steady high at 3.4V Board alone tries to boot, I can see in the PS, but it shoots down shortly after and only a long press/short on SMC_ONOFF_L will turn it on Battery is recognized and charge is fine.
  18. No-Clean

    820-4924 Only powers on after a long press of power button

    Ok this board end up back in our place again and I will like to fix it this time. Already checked all sensors in pages 42-43-44 they all look fine and measured correct. When I plug the board to power I can see the amps go up then they come down and board shuts down. If I short smc_on for...
Top