I accidentally put 12v on the 5v usb power lines of my Car GPS, pretty sure its this model. But now the devices does not power on. I have taken it apart and am trying to locate the issue if it is visible, but I would like some help finding where to begin?

The first components after the power supply I cannot identify, I think it is a QFN 6 pin labelled 'JHE', then a SOT-23-3 labelled 'WEG9I'. I have listed the voltages below, but nothing seems out of the ordinary from what I can tell.

The power button reads 3.13v on one side and GND on the other.

The board:

Any help or guidance would be great, thank you.