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  1. huzeafa

    820-02100 SSD REPLACEMENT

    Hello guys. Please I need help with a 16-inch 820-02100 board. The Board was working but would restart immediately after the OS started to load, it is the same thing when I try to press and hold down the power button to access recovery, I tried to restore the device in DFU MODE on multiple...
  2. huzeafa

    MacBook Pro A1990 has No Backlight but has 55V on the backlight output

    hello guys I have got an 820-01041 with backlight issues. I have replaced the screen cable, and the screen display connector but I still do not have a backlight even though the screen is fully functional, from what I understand, there's no load on the voltage output line, hence the reason for...
  3. huzeafa

    16 inches M1 820-02382 Stuck on DFU MODE.

    Hello guys Have got a 16 inches M1 Macbook Pro (820-02382) that is stuck in DFU MODE. The Logic board is spotless( very clean ) I went over the board and I couldn't find a short, PPDCIN is 5V PPBUS is 12.32V. PP3V3AON is present, an not sure exactly what method of troubleshooting to follow...
  4. huzeafa

    Boots directly into DFU MODE /STUCK IN DFU

    good day guys , please I would like to understand this concept, am having two separate machines have started to experience this , one was an A1990 and the other one is an A2141, is this caused by the T2 itself or its PMIC? Please guys , am not looking for a specific solution, I would like to...
  5. huzeafa

    Unable to activate Mac during macOS instillation

    Good day guys , I hope you all are doing okay , a big thank you in advance to all of you, for always readily providing support here . So I have started to see a wave of MacBook Pro come through the lab for macOS installation, T2 based macs only , and they are always stuck at a message that...
  6. huzeafa

    MacBook Pro A1398 -820-00163 1V on PPBUS

    Good day guys Have got an 820-00163 with no PPBUS voltage , there’s no short on the PPBUS and 2 confirmed isl replacements but same results. Have only got 1.5Von PPBUS. initially, the isl was burnt, so was replaced and also current sensing resistors values were off , so also replaced. The two...
  7. huzeafa

    MacBook Pro 15 inches A1707 820-00281 stuck of 5V

    Good day I have a MacBook pro 15 inches A1707 (820-00281) stuck on 5V. One of the ports stays steady on 5V, while the other 3 ports are fluctuating, which I thought suggests the one that is stuck on 5V is the issue, hence the reason why I replaced it 3 times with 3 different known working...
  8. huzeafa

    MacBook Pro 16 inches 820-02100 No Backlight

    Good day everyone and happy new year, I have 16 inches 820-02100 with No Backlight. I have used a known good screen and also tested its screen on another device, the screen is not the problem, there is no liquid damage, no oxidation, or anything related, the logic board is clean but with no...
  9. huzeafa

    M1 Air With backlight but no image

    Good day. I have a MacBook Air 820-02016, the machine displays fine on external but on internal, I only get backlight with no image, am actually lost on where to begin on this one, please help.
  10. huzeafa

    820-00840 WITH NO VIDEO ON INTERNAL SCREEN

    Good day guys, I have an 820-00840 with No image, but works fine on the external display. My PP3V3_S0SW_LCD/PP5V_S0SW_LCD signals are not present, only pulse at the first few seconds, I have replaced the video cable as well as the video connector on the board, but no changes, I checked for a...
  11. huzeafa

    820-00840 DOES NOT POWER WHEN BATTERY IS CONNECTED, ONLY TRACKPAD CLICKS

    Good day, guys. I have an 820-00840 that will not start when the battery is connected when it starts and you then connect the battery, the machine will not wake from sleep, the trackpad will however still remain active, and the machine will only display again after the battery is disconnected. I...
  12. huzeafa

    820-02020 M1 Displays on external but No internal image

    Good day guys, I have an M1 board, that does not display on the internal screen, No image or backlight, but I get display on an external screen. The board is clean, I have tested with a different screen but no changes, I tested the original screen with another board, and it displays...
  13. huzeafa

    MacBook Pro 16 inch 2019 stuck in recovery

    Good day guys . I have a MacBook Pro 16 inches that is stuck in recovery, sometimes it would boot and other times it’s just stuck in recovery, when I run DFU, I get error 36 please do point me to a direction on what I could do :
  14. huzeafa

    Unable to complete recovery key field

    Good day guys , have got an M1 iMac that that I am trying to type a recovery key in the process of password unlock, though the key entry are 7 fields in total, but am only getting room for 6 entry , and that doesn’t go through
  15. huzeafa

    820-01041-A SHOWS LOW BATTERY SIGN NO POWER

    Good day, guys. I hope I get help with this one, this is new for me on this line, I have only encountered this issue on older designs pre-2018 Mac Line-Ups. When I connect the charger, I get a low battery sign on the screen, but that's about it, with or without the battery connected, I get the...
  16. huzeafa

    USB-C USING TOO MUCH POWER (820-00923)

    GOOD DAY GUYS: I HAVE MACBOOK PRO 13-INCH TOUCH, WHEN I CONNECT A USB DEVICE ON THE RIGHT-HAND SIDE, I GET THE ERROR MESSAGE ::: unplug the accessory using too much power to re-enable usb devices::: I HAVE REPLACED THE CHARGING PORT BUT NO DIFFERENCE, THIS IS MY FIRST TIME WITH SUCH ISSUE, I DO...
  17. huzeafa

    820-00281 NO DISPLAY ON INTERNAL SCREEN

    Good day, guys. I have a 15 inches 2016/17 Touch Bar with no display on internal. When I measured in DIODE MODE {{EDP_AUXCH_C_P}} signal was very low compared to a working board which led me to replace U9850 from a donor board, then checked again in Diode mode, and this time the value I got was...
  18. huzeafa

    16 inch with funny issues

    Good day guys . Have got a 16 inches with a very funny behaviour: the machine powers and boots fine with the rich bar on but no display, however when I performed a “ REVIVE /RESTORE “ through DFU, the display will work again until I restart, then it stops working, when I perform the procedure...
  19. huzeafa

    820-00281 crashes from sleep only

    Good day guys Have got an 820-00281 that crashes when it wakes from sleep, but this does not happen when I manually put the machine to sleep from the operating system. below are the sleep signal I measured PP0V6_SLEEP = 06V PP0V8_SLEEP = 08V PP1V1_SLEEP = 1V PP1V8_SLEEP =1.8V SMC_LID RIGHT =...
  20. huzeafa

    Tools for bios programming

    Good day guys please I would like to be pointed to which which programming tool I can get for repairs. For older and newer machines : thank you
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