Search results

  1. Y

    820-3332, i think GPU problem

    820-3332 boot to the logo then restart. i replaced the solder of U8900, didn't work, then I replaced the GPU, it booted once and it had PPVCORE_GPU then it keeps restarting any ideas ?
  2. Y

    820-4924 no PP3V3_S5

    ok, C3208 was shorted i found L7560 shorted into ground on diode mode. thanks for your help
  3. Y

    820-4924 no PP3V3_S5

    U7501; pins 23 PPVIN_S5_HS_OTHER3V3 12.56 12 SMC_PM_G2_EN 3.3v 13 P5VP3V3_VREF2 1.9v 22 P5VP3V3_VREG3 3.2v 29 PP5V_S5 5.0v 21 S5_PWR_EN 3.4 v already replaced u7501 and q7560
  4. Y

    820-4924 no PP3V3_S5

    I have a board 820-4924 no power, consuming 0.01A PPBUS_G3H = 12.56v PP5V_S5 = 5v PP3V3_S5 = 0V
  5. Y

    820-2936, no image on the screen

    no video on the external lcd PPVCORE_S0_CPU 1.15v the board don't boot but stuck in s0 state
  6. Y

    820-3662-A suddenly shutdown

    Sorry, it is 820-3662-A there is no FDMF6808 chips. I changed the battery but it still shut down suddenly. what I have to try next?
  7. Y

    820-2936, no image on the screen

    820-2936, I don't have it's history it goes to S0 state, PPVCORE_S0_CPU is present. PP3V3_LCDVDD_SW 0v LCD_IG_PWR_EN 0v I am not sure the board is on, but it is in S0 state. what I have to check next? thank you
  8. Y

    820-3662-A suddenly shutdown

    this board suddenly shut down when it is on battery, but on the charger, it works fine. I think it is a battery problem... does anyone have a similar case?
  9. Y

    820-00165 can't install os

    This board don't accept osx always an error in picture. When I boot from another USB osx it boot, but it suddenly shut down
  10. Y

    820-00850 no power no water damage

    Yes, it was T2 problem
  11. Y

    820-00850 no power no water damage

    I have an 820-00850 no power, USB-c meter 20v0 0amp. PPBUS_G3H 11.34V, I think this is the problem I was looking for smc_reset_l to check if the SMC is working or not but I didn't find it.
  12. Y

    a1707, install osx pb

    I run HWMonitor, I have the temperature readings, just this, any other useful information I could get it from the HWMonitor? how I could check the drivers? I have douted the touch bar, it works but in the beginning, it was doing random pixel. if there is a lot of dust inside, could it cause...
  13. Y

    a1707, install osx pb

    ok, i did new experiment, i replaced the battery and cleaned the board in a ultrasound cleaner. after I succeed once to boot it from an external drive with high Sierra, but It was wired. Stuck on every operation I will attach photos. Every 10 sec it stuck and the colors circle appear, and it...
  14. Y

    820-2915, slow battery charging

    Yes I found a broken trace on the R5422 and I repaired it Q7055 replaced also but I didn't found a short in it thanks for help
  15. Y

    820-2915, slow battery charging

    CHGR_BMON 0v05v resistance between 17/18 2.8ohm
  16. Y

    820-2915, slow battery charging

    SMC_DCIN_ISENSE 0.3v oscillate to 1v BMON_ISENSE 3v the battery level about 50%
  17. Y

    820-2915, slow battery charging

    the battery voltage 10.8v it shows on the system 8% I put this battery on other known good board it charges with 2.5amp.
  18. Y

    820-2915, slow battery charging

    I tested a good battery the same problem, it charge the battery with 0.5amp
  19. Y

    820-2915, slow battery charging

    Sorry for being late on this.. it is 2915 Resistance between pin 19/20 9.2omh 27/28 26ohm I didn't replace u7000, it is a new board but it has the same issue.
  20. Y

    a1707, install osx pb

    I tried it, not working the same issue...
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