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Sleep om te herschikken

Press the power button to turn on the phone. There is no response at all.

Measure the boot current first. The current pointer moves from 0 to 50mA-60mA and then stays still. Connect the phone with computer. The phone can not be recognized.

USB IC or power supply of the logic board might have malfunctioned. (Why? You can check out the boot circuit explanation here)

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