Search results

What else should I try?

So 100% that the CPU is faulty?

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...

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

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

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 /...

Any idea?

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

Any idea what else can cause such an issue?

Yes

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

Device just stopped working, no water damage.

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...

Any idea?

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...

I only get 20V when I press hard on the battery connector. I will replace it and try again. Note: Multiple layer damage on that spot, had to remove multiple layers to get rid of the dead short on PPVBAT_AON_CONN

With battery connected I just get an apple logo (without progress bar). It jumps up to 20V. Already tried to get it into DFU, doesnt work. (even with FORCE method)

R8450 = 887kOhm R8451 = 453kOhm PBUS_DIV = 3.6-4V (not stable) PBUS_DIV_SNS = 3.5-3.7V (not stable) PP3V8_AON = 3.5-3.7V (not stable)

Hi, I have a MacBook Air M2 (13” / 820-02536 / A2681) that is stuck at 5V. It had water damage in the following areas: F5200 was blown and has been replaced. R8450 (pin 1 / PPBUS_AON): the pad was missing. After restoring the pad, PPBUS_AON could not be measured there for some reason, so I...

I installed the original NANDs again, and the power cycling stopped. I have no clue why or how. I managed to successfully DFU restore the device, and macOS installed successfully. Any idea what the issue was? There was no corrosion or damage under the NANDs. Edit: As soon I click on a language...