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  1. J

    820-00928 a1707 no power got 20v with 1.44amp to 3.++amp

    update: i just notice u1100 getting hot too not sure if this is normal.
  2. J

    820-00928 a1707 no power got 20v with 1.44amp to 3.++amp

    i changed again q3100 now no more hot (this part) but still no usb activity cpu still getting hot. if u have good bios can u share it to me or is there something need to check? thanks anyways.
  3. J

    820-00928 a1707 no power got 20v with 1.44amp to 3.++amp

    (good BIOS.) ? q3100 is overheating very hot. anyway i did try good bios came from backed up from another a1707 same board number.
  4. J

    820-00840 camera not working

    no knocked off components battery was removed before and after the tophalf replacement. i do believe i didnt damage any components when changing the screen. and i know im not the only 1 having this issue. im thinking maybe from the part number/version of the screen having issue. or maybe i...
  5. J

    820-00928 a1707 no power got 20v with 1.44amp to 3.++amp

    no usb activity U3200 PP3V3_UPC_XB_LDO 0.496 3.3V PP1V1_UPC_XB_LDO_BMC 0.512 1.1V PP1V8_UPC_XB_LDOA 0.519 1.8V PP1V8_UPC_XB_LDOD 0.479 1.8V U3100 PP3V3_UPC_XA_LDO 0.490 3.3v PP1V1_UPC_XA_LDO_BMC 0.516 1.1V PP1V8_UPC_XA_LDOA 0.521 1.8v PP1V8_UPC_XA_LDOD 0.472 1.8V UB300 PP3V3_UPC_TA_LDO 0.505...
  6. J

    820-00928 a1707 no power got 20v with 1.44amp to 3.++amp

    ( board alone, ?) yes PPVCORE_S0_GPU 0.9v PPVCORE_S0_GFX_PH2 0.9v im still having high current even i used other ports q/u3200 not over heating when i use this port but high current also. around q/u3100 resistance compare to other port is normal. (i also compare to other working board)
  7. J

    820-00840 camera not working

    hello i would like to continue this issue, anyways i still not solve this issue. now i have the same this issue with another a1708 with the same board number (820-00840-a) here is the scenario for the 2nd time: i recieved this macbook with the cracked lcd only, 1st i changed the top half...
  8. J

    820-00928 a1707 no power got 20v with 1.44amp to 3.++amp

    hello got this a1707 no sign of corrossion i have spining fan no chime ppbus_g3h is 12.6v i notice that when i use to put the charger to u3100 designated usbport the q3100 is getting very hot. i tried replace u3100/q3100 still the same. but when i use another ports im having the same amp...
  9. J

    (SOLVED) 820-3437 a1466 intermitent power

    solved this issue found corroded from trackpad connector. thanks
  10. J

    820-3437-b a1466 after shutdown cant turn on with battery alone

    i have this macbook customer say cant on. when i reconnect the battery and tried to charge can on. but when i shutdown with battery alone cant on. u can turn on only when the charger is conected. sometimes after boots shutdown itself. sometimes cant turn on totally tried put the mainboard to...
  11. J

    820-3462 A1425 NO POWER

    smc reballed nothing happens ppbus still 12.26V i have osci but i dont know yet how to use it, can give a little knoledge how to use it?
  12. J

    820-3462 A1425 NO POWER

    SMBUS_SMC_5_G3_SCL 0.527 3.4v SMBUS_SMC_5_G3_SDA 0.522 3.4v
  13. J

    820-3462 A1425 NO POWER

    SMC_RESET_L 3.3v tried change q7080 u7000 and dc in board no changes smc chip issue?
  14. J

    820-3462 A1425 NO POWER

    customer say lastime can power on fan was spinning so fast until the macbook dies. no sign of corrosion sometimes have green light most of the time dont have light on magsafe PPBUS_G3H 12.26v R7020 16V U7000 1 0v 2 16.3v 3 3.9v 6 3.4v 9 0v 12 3.4v 13 3.3v 14 3.1v 15 0.1v 17 12.28v 19 5.5v 20...
  15. J

    (SOLVED) 820-3437 a1466 intermitent power

    same issue with or without battery replaced LIO board/flex, can on but once u shut it down cant turn on again. after trying to turn again after pressing power button from orange light it will turn to greenlight for 1sec then orange again no fan spin no chime you must to reconnect the battery...
  16. J

    (SOLVED) 820-3437 a1466 intermitent power

    only can turn on when reconnect the battery. once u shutdown cant turn on again the charging indicator turns green and then orange once u press power button. tried change battery still same board is clean no sign of corossion run diagnostics no issues found. PPBUS_G3H 8.6V
  17. J

    820-02020 a2338 coffee damage

    PPBUS_AON 12.01V PPVBAT_AON 0V without battery PPVBAT_AON 2.5V-3.2V looping with original battery (drained) PPVBAT_AON 2.5V-3.2V looping with new battery with 70% change using original 87watts usb c power adapter
  18. J

    820-02020 a2338 coffee damage

    (also change Q5230/40 came from a1932 Q7660/80 still the same issue) this my mistake after i change this im not having 20v on usb meter. so i tried put back the original Q5230/40 i tried change q5265 came from a1932 no changes measurements below is the same before and after q5265 replacement...
  19. J

    820-02020 a2338 coffee damage

    Update: after i changed u5200 came from a1932 board, now can on again, but im still not getting voltage on PPVBAT_AON also change Q5230/40 came from a1932 Q7660/80 still the same issue PPVBAT_AON 0V diode to ground 1.542
  20. J

    820-02020 a2338 coffee damage

    bad U7100? i cant see this chip Q5230/40 how to check? do u mean by replacing this two? anyway i didnt get any voltage from L5230 and there is no shortcircuit on this area specially Q5230/40 there are chances to spoil this two Q5230/40 after replacing ISL9239?
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