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  1. Z

    820-00165 No power(SOLVED)

    Yes it works, no further issues found.
  2. Z

    820-00165 No power(SOLVED)

    Yes tried other card, didn't work, was missing Pin10 compared to good board, replaced U3510 and customers wifi turned out bad as well - issue solved, thank you very much for all your input.
  3. Z

    820-00165 No power(SOLVED)

    U8000 was bad - didn't get PP3v3_S4 this one solved however now missing bluetooth :(
  4. Z

    820-00165 No power(SOLVED)

    No at all, can not even Alt boot or PRam with internal keyboard, however SMC reset works with keyboard.
  5. Z

    820-00165 No power(SOLVED)

    Replaced SMC, I got it to turn on however now ran into issue with no keyboard/trackpad, opt out keyboard/trackpad/ipd cable - tested logic board into good working housing - issue the same.
  6. Z

    820-00165 No power(SOLVED)

    PMS_SLP_S4_L goes high twice with few second interval if charger reconnected and then stays on 0V
  7. Z

    820-00165 No power(SOLVED)

    If Im trying to bypass SMC now fan spins twice with few second interval PP5V_S4RS3 goes up to 5V at that time, but no further action unless I trigger SMC_ONOFF_L pads with tweezers - fan gives little spin everytime.
  8. Z

    820-00165 No power(SOLVED)

    Hi guys, Have 820-00165 here, liquid damage while ago, machine was working fine, suddenly stopped working 2 days ago, U1900 corrosion on 2 pins, replaced, U6100 Pin 5 small corrosion, but all voltages(3.3) present at U6100, jtag removed was corroded, U7501 looks good, SMC good, small crap around...
  9. Z

    820-00281 internal SSD issue

    Sorry for silly question as obviously different air stations different temperatures however what would be good T to re-heat internal of the chip without messing up solder balls under the chip(specifically under filled chips)? From experience too hot pushed solder balls out and messed up the...
  10. Z

    820-00244 no SSD drive.

    2informaticos just for curiosity - what would need to be done to replace nand on these? does SPI and CPU is involved? Sorry not meant to spam here...
  11. Z

    820-01521-a not booting

    Are you attempting to start machine with Audio board connected? Do you get a fan spin?
  12. Z

    Macbook Air Suspected sensor issue - ASD issues +

    Did you try board in different TopCase to opt out keyboard? it might cause same behaviour with faulty keyboard, and of course try with good clean IPD cable.
  13. Z

    16" 2019 Macbook Pro Keyboard Backlight Broken

    On 16" models there is fewer connectors, look online for teardown, I believe iFixit might have, hadn't looked at it, since there is a few they might left something under the board as fans are getting plugged into board directly now again....just carefully check again if every single connector...
  14. Z

    820-01521 Turns off if battery connected

    Yes tried that, as well as this "other sort" of SMC by Apple with T2 - CONTROL+OPTION+RIGHT SHIFT+POWER BUTTON and ordinary of course with keyboard and by disconnecting battery, Thanks
  15. Z

    820-01521 Turns off if battery connected

    Hi All, Hope somebody can point me right direction, 820-01521 minor liquid damage near the J3099, C7677/76/75, R1420/21, CC714/15, R1425, CC763/62, R1422/23 - all were affected by liquid, cleaned and replaced, machine now boots however after login loading bar reaches nearly 100% and it freezes...
  16. Z

    820-00840 No Power - PPBUS_G3H Was short to ground

    Ok great to know, thanks a lot for this!
  17. Z

    820-00840 No Power - PPBUS_G3H Was short to ground

    Well see it was my own board I was experimenting with but still sad if I killed the cpu, If i didn?t kill the cpu by injecting more than 1V on PPBUS_G3H so did that happen while mosfet originally got blown? So technically there was no fix anyhow right? Or what steps would you take in that case...
  18. Z

    820-00840 No Power - PPBUS_G3H Was short to ground

    Thanks for confirming this Just wondering here - was it dead cause of the shorted mosfet or cause injected 1V ?
  19. Z

    820-00840 No Power - PPBUS_G3H Was short to ground

    Hi guys, Have a feeling that this is a hopeless case but before I dump the board want to see if anybody might give me a hand with this, So basically board came in with no power, got 20V on charger 0.02A - 0.11A, checked rails and PPBUS_G3H was 0.04 short to ground, Injected 1V board was pulling...
  20. Z

    820-00164 no post, image, dong - turns on

    Sorry for confusion - I don't get none of the 3 - no image, no dong, no post, tried USB mouse/keyboard on both USB ports, I get 3.33V for PLT_RESET_L and VCORE is 1.8V I tried BIOS of the donor board, but same result.
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