[SOLVED]820-4924 - No video.

[bjf]

I restored 3V42 and the board is booting now but it's not putting out any video/backlight. Thunderbolt external video is fine. Boots normally to desktop. I'm using a known-good test screen. Flashlight through the back gives me nothing. I'm attaching pre-ultrasonic pics. It's pretty obvious where it got hit. Not sure where to go with this one.

 

[dukefawks]

Getting 5V to L8300 for a short while during power on? I see crap around U8330 which controls all that, check the enables there. R8341 also looks sad..

 

[bjf]

Just cleaned up, added solder and reflowed the U8330 area and it's good now. Thanks for the tips.