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  1. M

    820-00840 CPU MCA Error

    Installed new OS on a new SSD. Still getting this issue. When the Macbook does boot, everything works. But reboot takes time and some tries. This was the latest code
  2. M

    820-00840 CPU MCA Error

    Hey, A1708 820-00840, machine boots most of the time flawless, sometimes it takes some minutes to wake up. When it takes some time, theres an error reported, find attached. This machine gets pretty warm, in repair wiki i cant find a specific example as its not "random crashing". Inspected the...
  3. M

    820-00923 NAND missing

    SSD_BOOT_LB_L 1.8V SSD_PWR_EN_LB_L 0V STORAGE_LB_EN 3.33V SSD_RESET_LB_L 3.32V SSD_PCIE_CLKREO_LB_L 3.32V LPSR_EN_LB_L 3.32 Where to check clock? PCIE_CLK100M_SSD_LB_N or PCIE_CLK100M_SSD_LB_P? at R9420 P2V7NAND_EN and PICCOLO_VEN1 are 3.35V - is that correct?
  4. M

    820-00923 NAND missing

    Which left/right connections? Of J9600? Checked continuity for J9600, its okay. Tried a J9600 from another A1707, SSD still not present.
  5. M

    820-00923 NAND missing

    I tried to install OS X before i opened the Thread. I just tried it again with USB Installer and there's no SSD recognized. Questionmark Folder also still coming up.
  6. M

    820-00923 NAND missing

    No, it was about PP2V7_NAND_PVCC measured 5.107V and schematics say it must be 2.7.
  7. M

    820-00923 NAND missing

    L9300 0.9V L9320 0.85V L9330 1.22V L9340 1.81V L9400 2.67V From schematics PP2V7_NAND_VCC should be 2.7V
  8. M

    820-00923 NAND missing

    Installed J9600 metal plate. PPVIN_2V7NAND_LB is 13.01V instead of 2.7 edit: looks like PPVIN_2V7NAND_LB should be 13V? Found R9415 P2V7NAND_DRVL_R and P2V7NAND_DRVL at 0V .461 Diode PP2V7_NAND_VCC is 5.107V instead of 2.7, same for PP2V7_NAND_PVCC
  9. M

    820-00923 NAND missing

    Hey, 820-00923 A1706 with missing SSD. PP3V3_S5_SSD is 0,785V. Just wanted to measure around Piccolo Current Sense and - everything's missing. Just to be sure, there should be U5920, R5920, R5925, C5920? Also looks like U5910 is missing... Do i have bad schematics or is this real?
  10. M

    A2141 Screen flickering

    Hey, i just swaped an i9 logic board (donor MBP, drop damage) to a other case/screen. Everyting works but the screen began to flicker, on the right side its a grey bar but you can still see the desktop. So bascially i thought its a dead screen, but one time after a SMC / PRAM reset the screen...
  11. M

    820-00281 shorted battery?

    I thought i did with all 3 ports booting the machine. How to proceed?
  12. M

    820-00281 shorted battery?

    No, one port from JB500 doesnt work at all. Macbook is booting from all other ports.
  13. M

    820-00281 shorted battery?

    Q7065 no short. Pin 5 is one pin on the schematics but 4 real pins on the chip, is that correct? All pins O.L. Pin 1-3 .373 diode Pin 1 & 5 .427 diode P.S. Can i use A2141 Display Panel for this A1707?
  14. M

    820-01700 PP2V5_NAND_SSD1 0,06V

    Okay, its U8900 which gets hot. I´ll come back to here if NAND is switched.
  15. M

    820-00281 shorted battery?

    Sorry, what's D-S pins? I guess you mean the pins of Q7030/40 - no shorts C7020/23 0.00Ohm
  16. M

    820-01700 PP2V5_NAND_SSD1 0,06V

    So there's nothing left to do than replace U8900? Or which particular chip should be find? Everything on PP2V5_NAND_SSD1?
  17. M

    820-00281 shorted battery?

    Hey there. 2017 A1707 with dead display and battery. USB charger first showed pulsing 5V - 16V in loop. After disconnecting the battery macbook booted, display is obviously dead (flexgate) but external worked. When reconnecting the battery, USB charger begins to loop again. Found a burnt USB-C...
  18. M

    820-01700 PP2V5_NAND_SSD1 0,06V

    We used FLIR one (shit) and the only part which got hot was SSD.
  19. M

    820-01700 PP2V5_NAND_SSD1 0,06V

    PSU@2V takes 0,38A What do you mean? The cable used for injection? Thats 0,75mm²
  20. M

    820-01700 PP2V5_NAND_SSD1 0,06V

    Lifted U9080, doesn't look corroded. Short is still present on PP2V5_NAND_SSD1. Injected 1 - 3V. SSD gets warm at 3V, but only 30°C. Still L9080 / L9081 0.00Ohm / .002 Diode
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