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  1. Y

    820-00165 chime noise non stop

    when disconnecting all it stuck on a black screen, but when i connect IO flex it + battery (need it to turn on this version) it's stuck on the same problem(the infinity loop sound)
  2. Y

    820-00165 chime noise non stop

    The MacBook turn on the backlight then gives the sound of chime noise, after it, it enters on infinity loop of this sound, anyone knows what is the problem and can it be fixed? (tried to change this bios of this is motherboard but always the same problem)
  3. Y

    820-01521 water damaged

    sorry it's 6.7 ohm so pp1v1_SLPDDR_SOC 0.3 ohm
  4. Y

    820-01521 water damaged

    I Found PP1V8_SLPS2R Shorted with 6.7 when i tried to connect the charger voltage in this line was unstable between 0 and max value was 0.6 V also PP1V1_SLPDDR_SOC was shorted too was 0.3, can it be the T2 chip? and is there anyway i can fix this issue?
  5. Y

    820-01521 water damaged boost to 20v

    Hello, I have another 820-01521 water damaged, it boost to 20v 0.1a 0.5a 0.65a, then it drop back to 0a, and it cycle again on this numbers...
  6. Y

    820-01521 water damaged

    Hello, I have 820-01521 water damaged, one USB-C port have 5v 0.3a-0.5a The other one 5v0 0a How i could start the diagnostic in this case. Thanks for your help.
  7. Y

    820-01521 stuck at 5v after water damage

    "Do you get the same voltages on XV lines? " where is this net ? cant find it PPBUS_G3H 12.3V SLPS2R 1.8V PP1V8_AWAKE 1.8V the water was split on the trackpad sometime after plugging and unpluging the usb cable so many times, i get 20v 0 amps
  8. Y

    820-01521 stuck at 5v after water damage

    i have 820-01521 stuck at 5v at the charger 0.04 amps. I am not getting PPDCIN_G3H at the source of Q3100. UPC_XA_GATE2 shows 6.5v, but UPC_XA_GATE1 is 7v. PP3V3_G3H_RTC = 3.3 v i replaced the CD321500z, still the same problem. PP3V3_UPC_XA_LDO 3.3v PP3V3_TBT_X_SX 0v PP1V8_UPC_XA_LDOA 1.8v...
  9. Y

    820-01700 no backlight

    Yes, also i can see the apple logo
  10. Y

    820-01700 no backlight

    Hello, I have a 16inch MacBook, Finally, I found the board view and schematics. the board is pretty clean and no backlight, but the client said it is water damaged. any suggestions?
  11. Y

    820-00928 stuck at 20v 0.24A

    PP1V8_SSD_DRAM is low, 0.4 o 0.8v
  12. Y

    820-00138 turn no, no video

    I have 820-00138 it try to start, it is in s0 state. Attached a photo of the power consumption readings, all s0 state is fine i can't find any one try to appear then drops
  13. Y

    820-00928 stuck at 20v 0.24A

    no usb activity
  14. Y

    820-00928 stuck at 20v 0.24A

    Hello, i have this board, no visible water damage. it go to 20v and stuck on 0.24a PPBUS_G3H 12.61v then i tested s0 line directly, it goes to s0 state PPVCCIO_S0_CPU 0.9v PPVCCSA_S0_CPU 1.045 PPVCCGT_S0_CPU 0v U8605 gets a hot, to 40c
  15. Y

    T2 iCloud unlock

    recently I found on eBay some people unlock new MacBook iCloud with T2 CHIP 2018 to 2020. any information about this? there is a solution now...
  16. Y

    820-00850 No image on the touch bar

    I disconnected the camera connector, internal screen, touch id, always no image on touch bar. i reflowed T2 chip, UB00 same problem...
  17. Y

    820-00239 High speed fan spinning

    where is sensor located on the board to check ?
  18. Y

    820-2915 fan start to spinning than stop

    what voltage and signal i have to check ?
  19. Y

    820-2915 fan start to spinning than stop

    actually was working for 2 months after GPU replacement, I will provide you with signals and voltage, what exactly you need?
  20. Y

    820-2915 fan start to spinning than stop

    This board gpu was already replaced and reflowed the ram. The fan start spinning the stops. Attached the power consumption graph. Any suggestions ?
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