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  1. Y

    820-00850 No image on the touch bar

    When i click update it try to update then i get error message again.
  2. Y

    820-00850 No image on the touch bar

  3. Y

    820-00239 High speed fan spinning

    820-00239, without water damage, the board is very clean and I tested it in a known good MacBook. It looks like the sensor issues, but the client reported that it’s happened after it stuck while an update, not water damage. I booted from an external driver to get the sensor reading in the...
  4. Y

    820-00850 No image on the touch bar

    After a drop, no image on the touch bar, but the touch is still working. Also, I can't install the os, is giving me an error.
  5. Y

    820-00840, SSD installed while the battery connected

    Hello, I have an 820-00840, i believe that the client removed and installed the SSD without disconnecting the battery. The start to turn on but no image on the screen, if I remove the SSD, everything works fine and I can boot from an external driver, and get into macOS. I tried a different SSD...
  6. Y

    Macbook 2018 T2 iCloud

    Who to check if it is icloud locked ? Do you suggest a website to verify ?
  7. Y

    Macbook 2018 T2 iCloud

    Hello, i didn’t deal yet with any MacBook 2018 that could have an iCloud lock, I will buy some MacBook untested and not sure they have iCloud or not how to check the MacBook iCloud state ? could it be unlocked? Thanks
  8. Y

    820-2915 fan spin then stop

    Hello, i have a 820-2915 The fan spin for half second then stop. How to start the diagnositic of this one? Thanks
  9. Y

    820-2915 NO PPVCORE_S0_CPU

    all voltages from pages 69/70 are present I tried known good BIOS no history available, but I found a ripped off component
  10. Y

    820-2915 NO PPVCORE_S0_CPU

    Hello, I have 820-2915 no PPVCORE_S0_CPU CPUIMVP_VR_ON 3.3v PPVCORE_S0_CPU diode 0.09v already replaced U7400 what to try next?
  11. Y

    820-3115 water damaged

    thanks; it is working
  12. Y

    820-3115 water damaged

    yes Q7803 pin 1 0.1v pin 3 3.2v U7970 PIN 1 3.3v pin 2 3.3 pin 4 0.2v pin 6 3.3v
  13. Y

    820-3115 water damaged

    Sorry about that, the board boot just with battery, i found this not normal. i tried to replace SMC, same result pin 1 0.1v pin 3 3.2v Q7800 pin 3 3.0v pin 1 1.9v pin 4,7 3.3v
  14. Y

    820-3115 water damaged

    Q7800/03 3.3v 3V3_S4 w 0.393 3V3_S4 w/o TP 0.400
  15. Y

    820-3115 water damaged

    I have 820-3115 water damaged No keyboard or trackpad after repairing the water damage, it boot and i can get to the system. The fan is spinning fast, I think there is a sensor issue. I checked ot with Hardware monitor, sensor reading of memory module 1 128, i think it is damaged. Where it is...
  16. Y

    Charging MacBook USB-C with power supply.

    How could i charge the MacBook USB-C with a the power supply directly ? What module to use to communicate between the power supply and MacBook USB-C Thanks
    • yobad
    • Thread
    • Replies: 2
    • Forum: Tools
  17. Y

    820-00165-a BATTERY NOT DETECTED.

    Had the same problem, i followed this post. I changed the smc, it is working. Thanks
  18. Y

    820-00170-05 water damaged, no backlight

    I have 820-00170 water damaged, no any signs of water on the board, it is pretty clean. I can see the image but no backlight. Is the boardview and schematic available for this board ? Thanks
  19. Y

    820-3437, it try to start

    i am using amtech, i reflowed the CPU no result, what to try next?
  20. Y

    820-3437, it try to start

    I can't find any pulses on the big coils, there is a pulses at ALL_SYS_PWRGD. The board water damaged, but it was booting before. After i put it in the ultrasonic cleaner. It stopped to boot and not S4 state. Once i fixed this problem by reflowing the CPU, but in this model when i reflow it...
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