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  1. 2informaticos

    [help]macbook air 820-01521...seems alive but it's dead! crazy!!

    Try restore more times; always starting from DFU, not Recovery.
  2. 2informaticos

    [help]macbook air 820-01521...seems alive but it's dead! crazy!!

    I tried to explain you that sometime revive doesn't fix problems. As in my case, restore was completed without error. If you already tried restore and still failed, the problem may be on the T2, or SSD side. Few days ago also told you that restore may fail several times and one day completes...
  3. 2informaticos

    [help]macbook air 820-01521...seems alive but it's dead! crazy!!

    I had one A1932 on the desk yesterday. It failed revive with error 4041. However, restore was successfully completed from first atempt. BTW, needed to switch from Recovery to DFU with external switch, in my case.
  4. 2informaticos

    820-02098 MagSafe cycling on/off

    First of all, welcome to the forum! You can replace only U5500, but must get it from donor board, same model and position. Just in case, reflash U5560 first; if you can get good working dump.
  5. 2informaticos

    [help]macbook air 820-01521...seems alive but it's dead! crazy!!

    If you start from Recovery, instead of DFU logo, that may cause the error. So try again once AC2 shows DFU logo...
  6. 2informaticos

    [help]macbook air 820-01521...seems alive but it's dead! crazy!!

    So, I explained you how to force it in pure DFU, not Recovery. One week ago I had problems with an A1989 and took me various minutes to switch from Recovery to DFU. It completed DFU restore after several tries (more than 10 times).
  7. 2informaticos

    [help]macbook air 820-01521...seems alive but it's dead! crazy!!

    "i see it in Apple Configurator not in dfu But in Recovery"
  8. 2informaticos

    [help]macbook air 820-01521...seems alive but it's dead! crazy!!

    I told you how I proceed in such case. The problem with your model is that you don't have dedicated pads to solder a switch for SOC_FORCE_DFU signal. You need to solder tiny wires to corresponding points, on back of the MLB...
  9. 2informaticos

    [help]macbook air 820-01521...seems alive but it's dead! crazy!!

    You've said it appears in Recovery, not DFU. Or do you mean that it starts on Internet Recovery mode in fact?
  10. 2informaticos

    [help]macbook air 820-01521...seems alive but it's dead! crazy!!

    Pressing power button 10s should turn it off. Not sure if you can access pure DFU mode with keyboard only. I do it using external switch method usually.
  11. 2informaticos

    [help]macbook air 820-01521...seems alive but it's dead! crazy!!

    I could only see 1.6A consumption; possibly with battery connected. What is the current consumption without battery? Can you post voltage on the coils?
  12. 2informaticos

    820-02098-A MBP A2442 booting without display connceted

    If the problem appeared after display changed, check for mechanical damage. Possibly damaged connectors, or knocked off components (near the board edge).
  13. 2informaticos

    A1466 SSD ISSUE

    It can be SMC issue. But keep in mind, SMC doesn't supervise any sensor in SMC bypass; no matter is thermal, or I/V sensor. Did you check mentioned lines for continuity?
  14. 2informaticos

    A1286 820-2850 disk not booting

    https://drive.google.com/file/d/14sothhRfmcRtalp6JkpAcyYVCEofUYUM/view?usp=sharing
  15. 2informaticos

    A1466 SSD ISSUE

    No schematic of its LIO board; use mentioned one as guide! The thermal sensor is the same. You don't need to identify LIO connector pins.
  16. 2informaticos

    820-3115 A1278 reset

    I think a Kon-Boot macOS version exists; probably paid version.
  17. 2informaticos

    A1466 SSD ISSUE

    Check continuity between R5370/1 and corresponding pins of LIO Finstack Temperature chip. You can use TMP 102 datasheet and 820-3057 LIO schematic as guide.
  18. 2informaticos

    Macbook A2338 5V .400 Amps

    "Q420 lines arent shorted" If no short, check its enable signal. It shouldn't receive enable signal when the output voltage is present.
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