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  1. M

    A1707 motherboard compatibility

    Hi Guys, sorry if its an off-topic but i cant seem to find online whether A1707 2016 motherboard is compatible with 2017 model? There is no better place on Earth to ask this question ;) Thanks!
  2. M

    A2289 keyboard replacement

    Hi, Has anyone done a keyboard replacement on MacBook Pro 13" 2020 A2289? Can it be replaced separately? Is it tricky? How difficult is it? A1706 difficult or as simple as A1278? Thanks!
  3. M

    MacBook Air 2018 A1932 restore error 1008F and external boot is locked

    Hi, I have an A1932 machine here that does not boot to OS. Recovery gives an error: 1008F and external boot is locked. What is my best solution? Thank you for your help!
  4. M

    820-3662 WD, magsafe light, fan spin but no chime or image

    Hi there, This board was water damaged. Has been to another shop already. They cleaned the board so cant original areas of corrosion. I have orange light on MG. Normal fan spin. No light on caps key or USB mouse. No chime, no image. I took some measurement but now I am stuck and dont know...
  5. M

    820-00292 iMac 27-inch 2015 no light on diagnostics leds

    Hi, Tried good working power supply - no light on any diagnostics LEDs. Inspected board for corrosion or explosions - nothing. Seems like there are no schematics for this board either. Any known issues with this board? Any idea what it can be? Thanks!
  6. M

    820-2915-B Headphone jack problem

    Hello, I have strange problem with audio jack. When I start the machine headphones work. If I unplug and replug them, they stop working. If I restart the machine they work again. Speakers work normally. Audio codec? REF line? Please advice how to proceed. Thanks!
  7. M

    820-00165 NO WD. Sometimes green light on MG but mostly not.

    Hello friend, ppbus_g3hot - 8.2V PP3V42_G3H - 3.42V PP5V_S5 - 0V PM_SLP_SUS_L - 0V 3V3_SUS - 0V PM_RSMRST_L - 0V PM_PWRBTN_L - 0V SMC_ONOFF_L - 3.4V SMC_RESET_L - 3.1V Please advice how to proceed. Thanks!
  8. M

    820 3437 no Water damage, no fan spin, MagSafe orange

    https://www.youtube.com/watch?v=9JcmJ6LHdWA&t=777s I tried to follow this, was looking like the same, but after smc reflow, still not fix. I get 3.11V on SMC_reset_L PP3V42_G3H present. PP5V_S5 present. PP5V_S0 - 0V solutions?
  9. M

    00165 No Backlight. WD. L7701 - 8.5V. BKL_EN -2.8V. BKL_PWM -2.8V. FB - 0V.

    Hello, Backlight IC replaced. L7701 - 8.5V BKL_EN -2.8V BKL_PWM -2.8V FB - 0V FB line is not broken. Have continuity. Fuse is okay. R7712-22 - 0 oHms. OL in diode mode. Please advice how to proceed. Thank you!
  10. M

    820-00244 no water damage, 0V on the charger

    Hi, 1. 0V on the charger 2. replaced U3100, now 5V on the charger. U3100 replaced with the same model B01 but from another donor board that had 20V on charger. 3. All big coils 0V. PPBUS_G3H - 0V. P3V3G3H - 0V. 4. Checked for short on all the big coils. L7210, L7230, L7410, L7430 seem to be...
  11. M

    820-00165 Small water damage around L7701. No backlight.

    Hi there, Feedback line was missing because the pad was totally destroyed by corrosion (see the picture). Ran a jumper to another pad (see picture 2). Replaced the backlight driver IC. Still no backlight. 8.5V on the coil. Checked BKL_PWM - was low (0.8V). Connected C7711 to pin 2 instead of...
  12. M

    820-3476 no water damage, MagSafe, not boot, no image.

    PPBUS_G3H - 12.6V 3V42 - 3.43V SMC_RESET_L - 3.12V ALL_SYS_PWRGD - 0V no pulse PM_SLP_S5_L 0V no pulse PM_SLP_S4_L. 0V no pulse PM_SLP_S3_L. 0V no pulse PM_SLP_S0_L 0.13V pulse L7130 - 12.6V L7520 - 0V L7430 - 0V L3095 - 0V L7560 - 0V L7320 - 0V L7310 - 0V L7330 - 0V solutions? Please help
  13. M

    820-00165-A MagSafe light, fan spin, no image, no water damage

    L3095 0V L7520 5.13V L7701 0V L7560 3.36V L7310 pin 1 - 1.97V pin 2 - 1.8V L7320 pin 1 - 1.99V pin 2 - 1.8V L7130 pin 1 pulsating 5.90V - 7.2V pin 2 8.6V PPBUS_G3H is 8.6V and 3V42 is present 3.42V. PM_BATLOW_L - 3.31V PM_DSW_PWRGD. - 3.42V PM_RSMRST_L - 3.03V PM_PWRBTN_L - 1.0V PM_SLP_SUS_L -...
  14. M

    820-00928 NO water damage, 20V, No fan, no chime, no image, no boot

    Hi there, No signs of water damage. Magsafe charger switches from 5V to 20V. All main coils (and there are many on this board) - 0V, except for L7660 - 3.31V. No pulse on ON/OFF button press. SMC bypass - same. Though I am not sure if SMC bypass procedure is the same as on previous generation...
  15. M

    820-00164-A no booting - no water damage - no image - no fanspin - light on magsafe

    820-00164-A Hi, No water damage on the board. Value is board connected to power normally. L3095. 0V L7520 0V L7701 0V L7560 3.34V L7310 0V L7320 0V L7130 7.94 Value while you press the power button L7520 1.61V L7310 0.61V L7320 0.32V please advise how to proceed.Thanks.
  16. M

    820-4924-A NO water damage, light on MagSafe, no fan, no booting.

    Hi, No water damage on the board. First value is board connected to power normally. Second value is board in SMC bypass mode: L7130 - pulsating 12.14V-12.59V; 12.27V L3095 - 0; 0 L7560 - pulsating 1.0V-3.0V; 3.34V L7520 - pulsating 0.01V-0.07V; 0V L7430 - 0V; pulsating...
  17. M

    820-00165 no water damage. No light on MG, no fan spin, all coils 0V

    Hi there, no water damage. No light on MG (1 out of 10 i get orange light that fades out), no fan spin, all coils 0V. Tested with good working io board and cable. Please advice how to proceed. Thanks!
  18. M

    820-4924-A Water Damage, no keyboard, no trackpad

    Hi, Coffee spilled on keyboard. No corrosion on the motherboard. Tested with new keyboard - working. After installation not working. Tested with new keyboard - working. After installation not working. Test more times: sometimes working, sometimes not working. Tested with good trackpad and...
  19. M

    iMac A1419 screen ficker

    Hi, I have an iMac 27-inch from Late 2013 with flickering screen issue (exactly as on the video from the link). Tested with another screen and LCD cable still flickering but differently (the whole screen flickers ON/OFF with another screen). What do you think it can be? THanks!
  20. M

    820-3437-B No fan, no water, MG orange

    Hi there, No water damage. Board inspected, nothing looks suspicious. SMC reset - MG flashes green to orange. SMC bypass - gave me half a fan spin once but not anymore. L7701 - 0V L3095 - 0V L7130 - 8V L7520 - pulse around 0.5-2V L7560 - 3.2V L7430 - pulse 0.5V L7630 - pulse around 0.4V L7310...
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