(347) 552-2258 [email protected]

Recent content by 2informaticos

  1. 2informaticos

    A2681 (820-02536) - Unknown Device (DFU)

    I never faced with such issue. Possibly CPU problem. Just in case, erase SPI ROM (U1900) and try DFU again. Don't forget to make backup first!
  2. 2informaticos

    [help]imac 21,5 a1311 820-2641! is it a kind of magic?

    Did you test with known good CPU?
  3. 2informaticos

    [help] a1502 820-4924 extremely slow after liquid spill repair

    On this model, the fan doesn't start until CPU gets really hot. Possibly problem with ALS sensor; test disconnecting webcam cable.
  4. 2informaticos

    [help]imac 21,5 a1311 820-2641! is it a kind of magic?

    "the low value remain on pp1v5_s0_cpu_mem (0,054)" Did you check with RAM modules removed? That reading depends on the actual RAM installed.
  5. 2informaticos

    [help] a1502 820-4924 extremely slow after liquid spill repair

    Did you try known good battery? Also test with another trackpad board/flex. Install (if possible) HWSensors and check reported values. You can also try to run embedded diagnostic...
  6. 2informaticos

    A2681 820-02872

    You should swap the SPI ROM also. Not sure about SEP EEPROM...
  7. 2informaticos

    A2141 820-01700 no power

    Injecting voltage is the fastest way to diagnose it. 1V may be good enough; using a good thermal camera.
  8. 2informaticos

    A2681 (820-02536) - Unknown Device (DFU)

    Tried another cable too? Don't use thunderbolt cable.
  9. 2informaticos

    820-01041 wake up problem

    Still not clear if missing only backlight, or image too. "9-0v 10-0v" F8400 burnt? Check diode mode to ground at R8400.
  10. 2informaticos

    820-01700 - short on U6960

    Be sure is not the filter cap; before touching the chip. Just in case, don't forget to check in diode mode again; once the chip is removed (out of board) and board colled down.
  11. 2informaticos

    A2681 (820-02536) - Unknown Device (DFU)

    The host machine in DFU is also Apple silicon, or Intel?
  12. 2informaticos

    820-01041 wake up problem

    Do you still have image on internal LCD? Did you test with good screen?
  13. 2informaticos

    820-01700 - short on U6960

    So no low value at 3V3_G3H_RTC. Not easy to find a culprit then. Check diode mode to ground on all power rails from Intel side.
  14. 2informaticos

    MacMini m1 - 820-02091 - short line

    The layout around PMICs should be similar with MacBook boards. Be aware, not any low reading means short; depends which power rail is there.
  15. 2informaticos

    A2681 (820-02536) - Unknown Device (DFU)

    Any fault history available?
See more
Top