Recent content by manumathew.017

  1. M

    820-3476-A A1502 battery not charging /Not detecting

    Yes, I measured 10k between ground and battery terminal…
  2. M

    820-3476-A A1502 battery not charging /Not detecting

    Its 0.509V & 0.507V - diode mode , And voltage is 3.4V
  3. M

    820-3476-A A1502 battery not charging /Not detecting

    yes its glowing , Green while connecting ,,, then turning into orange
  4. M

    A1989 - 820-00850-A NOT BOOTING NO USB ACTIVITY

    Feedback resisters were bad, Changed it, Couldnt find 1% tolerance one, Replaced with 5% resisters.However board is ON now,,,,,,, :)
  5. M

    820-3476-A A1502 battery not charging /Not detecting

    Everything works fine with Charger,, But the battery not detecting...Where should I start looking ?
  6. M

    A1989 - 820-00850-A NOT BOOTING NO USB ACTIVITY

    Ok seems like there is no issue with AC2 , Is there anything else I can try ? Any hopes to get it back into life ?
  7. M

    A1989 - 820-00850-A NOT BOOTING NO USB ACTIVITY

    App Store says that the AC2 available only from mac OS 14.00 and above
  8. M

    A1989 - 820-00850-A NOT BOOTING NO USB ACTIVITY

    I’m using Mac OS Ventura for Apple Configurator, configurator was not available directly in App Store,Downloaded it from a third party website….Does it has anything to do with the restore failure?
  9. M

    A1989 - 820-00850-A NOT BOOTING NO USB ACTIVITY

    I have shorted the 3V3_S5 , now L7030 is measured 4.5V , Restoring is still failing with the same error The System cannot be restored on this device. Unexpected device state 'BootedOS' expected 'DU' (Probably caused by a transient USB layer issue causing missing or duplicate events)...
  10. M

    A1990 battery compatibility with a1707

    I have a top case of A1990 , can I use it with A1707 logic board? Or else at least the battery? Just waiting for the expert opinion on its difference
  11. M

    A1989 - 820-00850-A NOT BOOTING NO USB ACTIVITY

    Am I allowed to connect 3V3_S5 to ground ? Just out of curiosity how is it going to help ?
  12. M

    A1989 - 820-00850-A NOT BOOTING NO USB ACTIVITY

    At L030 I measure 10.4V during the restore process , is that normal? Or the board is just stuck and not happening anything?
  13. M

    A1989 - 820-00850-A NOT BOOTING NO USB ACTIVITY

    How do I know real restoring is happening or not ? It’s stuck at this window from past few hours
Top