Recent content by isc

  1. isc

    What is the difference between a1534 keyboards 2015-2016-2017

    this is chat GPT answer :) " No, it is not possible to use the keyboard from a 2017 MacBook on a 2015 MacBook. The keyboards used in these two models have different designs and connectors, so they are not interchangeable. Each MacBook model has its own specific keyboard that is compatible only...
  2. isc

    What is the difference between a1534 keyboards 2015-2016-2017

    can i use 2017 keyboard for 2015 mac ? is 2016/2017 are full replaceable ?
  3. isc

    Macbook Pro A1398 mid-2015 820-00138-A FREEZING AFTER MINUTES

    i disconnect two j9500 and j9510 RIO board but not fixed, i use 85W magsafe 2 charger but the problem also still when i using battery
  4. isc

    Macbook Pro A1398 mid-2015 820-00138-A FREEZING AFTER MINUTES

    i already test more than 3 macOS from a SSD preinstalled in other machine but always freezes, the same situation on other bios , diagnostic mode shows this error
  5. isc

    Macbook Pro A1398 mid-2015 820-00138-A FREEZING AFTER MINUTES

    thanks for your advice , but other board i swapped FDMF6808 to working fine I try other bios "A1398 820-00138_Unlock Clear me"but not fixed i reinstall macos but it freezes randomly during finishing install what is other possible reasons?
  6. isc

    Macbook Pro A1398 mid-2015 820-00138-A FREEZING AFTER MINUTES

    Hi , after normal boot up about 5 minutes it freezes, the trackpad and keyboard not responding and usb mouse also not responding also but youtube video continue playing few minutes after freezing then restarts automatically. I replaced ssd but not fixed ,then i swap all 3 FDMF6808 from...
  7. isc

    FIXED A1466 820-00165-A backlight problem

    the continuity between Q7706 and L7701 is perfect R5490 not exist just track onboard i replaced D7701 not fix the problem i replaced L7701 the issue fixed! :) L7701 swollen and expolded from the underside .
  8. isc

    FIXED A1466 820-00165-A backlight problem

    I disconnect everything and replace charging board and its flat cable ,touch-pad fcc test other good working lcd assembly everything ok else no backlight when i close lid then open it backlight flashed then turns off i replaced U7701 with new one SMC_LID 3.3v EDP_BKLT_PWM 2.49v SMC_LID 3.42v...
  9. isc

    FIXED A1466 820-00165-A backlight problem

    i know LCDBKLT_EN_L it must be due volt divider 2.756 v but when i force pin 3 for Q7707 to GND pin 3 for Q7706 is 2.8v and source & drain are 8.5v i replaced all comunents above one time the pin 3 for Q7706 is now 2.8v also only backlight flash millisecond then turns off note:KB...
  10. isc

    FIXED A1466 820-00165-A backlight problem

    yes the same value 7.9v no change and i replaced Q7706 , R7788 , R7789 from other board and no way
  11. isc

    FIXED A1466 820-00165-A backlight problem

    I removed C7782 but no change Q7706 is correct and from working doner board
  12. isc

    FIXED A1466 820-00165-A backlight problem

    i replaced Q7706 ,Q7707 and U7701 and check R2088 0 ohm now Q7706 pin 1 8.4v 2 8.4v 3 7.9v 4 8.5v 5 8.4v 6 8.4v Q7707 pin 1 0 2 3.3v 3 0 4 0 5 3.3v 6 0 also i check R7789 147k and R7788 300k
  13. isc

    FIXED A1466 820-00165-A backlight problem

    I replaced Q7706 & Q7707 from good working board but no backlight R2088 3.3v U2071 voltages 1 3.32v 2 3.32v 3 0 4 3.32v 5 3.32v
  14. isc

    FIXED A1466 820-00165-A backlight problem

    only image and backlight comes on less than a second then turns off video in drive link https://drive.google.com/file/d/1exB2QGr9Qyc9aNhqdBXOx54-V2tmmYqU/view?usp=share_link
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