The device is charging, but the USB is not working. The USB voltage indicator does not light up at all. I tried using a flash drive, but its light is also not turning on, indicating that there is no USB 5V power. Where should I check next? I have already tested the DC socket and the intermediate flex cable.
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820-00145 A1534
- Thread starter tipoti
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I suppose you have 820-00045 board in fact.
An USB device is powered from L7850; through U7860/65, depending which way the device is connected.
An USB device is powered from L7850; through U7860/65, depending which way the device is connected.
Only one of U7860/65 works at a time; depending of the connection way.
Check BBPD_VCONN1/2_EN signals.
At least one should be high, when external USB device is connected.
If not, change U4700.
If use USB-C hub, then power it externally.
Check BBPD_VCONN1/2_EN signals.
At least one should be high, when external USB device is connected.
If not, change U4700.
If use USB-C hub, then power it externally.