I have a 55HT1U that Intermittently when I turn it on the the green stby light flashes along with the backlighting on screen eventually it will come, other times when working properly it will do this when i go to shut it off. I have tried a main module, soldered connections on inverter board but nothing changes. Any ideas
55HT1U On-off issue
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I'm working on a MacBook Air 2020 (A2337, board 820-02016) and running into a strange USB-C issue. I've gone through quite a bit of testing and part replacement, but I'm stuck — hoping someone here can shed some light.
🛠 Original Issue
The machine initially wouldn't negotiate 20V over USB-C — stuck at 5V.
Diagnosis showed PP1V5_UPC0_LDO_CORE shorted to ground.
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