Recent content by HeyWatchOutDude

  1. HeyWatchOutDude

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

    So 100% that the CPU is faulty?
  2. HeyWatchOutDude

    A2681 - Repair Assistant / Touch ID sensor

    Yes, I have used a known good Touch ID. RT0403 = 0ohms, fine. J0401 = Also fine. Is it possible that "TOUCHID_BOOST_EN" only gets enabled when the Touch ID is successfully paired with the Mac? TOUCHID_INT = 0.306 TOUCHID_PWR_EN = 0.305 SPI_TOUCHID_CLK = 0.585 SPI_TOUCHID_MISO = 0.590...
  3. HeyWatchOutDude

    A2681 - Repair Assistant / Touch ID sensor

    LT601 is good. TOUCHID_BOOST_EN (I have checked RT620 and RT0403 all good) = 0V PP3A8_AON_IPD = 3.8V PP17V0_LDOIN = 3.4V
  4. HeyWatchOutDude

    A2681 - Repair Assistant / Touch ID sensor

    R2004/5 = 20ohms (1.250) Yes I have tried like 2-3 diffferent boards, I have noticed that PP16V0_TOUCHID_FILT_CONN (0.616) is missing. TOUCHID_PWR_EN = 1.2V
  5. HeyWatchOutDude

    A2681 - Repair Assistant / Touch ID sensor

    Hi, I have a MacBook Air M2 (2022/A2681) here that was missing its Touch ID sensor. I have an OEM Apple replacement, but it isn’t being recognized by the Repair Assistant; it just says 'Touch ID problem'. Output/Diagnostics: - Connectivity: Good - Calibration: Good - Test Finger: Not Good /...
  6. HeyWatchOutDude

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

    Even with blank U1900 and from another A2681, still getting "Unknown Device" in AC2.
  7. HeyWatchOutDude

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

    Any idea what else can cause such an issue?
  8. HeyWatchOutDude

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

    Apple Silicon (I have tried it with M1, M1 Pro and M2) - same behavior.
  9. HeyWatchOutDude

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

    Device just stopped working, no water damage.
  10. HeyWatchOutDude

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

    Hi, the device is recognized in DFU mode by Apple Configurator 2, but it shows as an 'Unknown Device'. A 'Mobile Device Support' pop-up appears asking to 'Install' or 'Cancel', but clicking 'Install' leads to a failure. Additionally, the restore/repair process won't start. - PPBUS_AON = 12.26V...
  11. HeyWatchOutDude

    A2681 (820-02536) NAND Replacement - BOM CFG for Single 256GB Setup

    Hi, I’m working on an A2681 logic board (820-02536) that originally had a 512GB dual-NAND setup. Unfortunately, both original NANDs (UN000 and UN100) are faulty. For testing purposes, I want to convert this board to a single 256GB configuration using a KIC5224 NAND pulled from a donor A2681. I...
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