Looking for some advice. I’m trying to sell my 2011 F150 platinum 5.0 and am in the process of fixing small issues beforehand.

I cannot figure out my backup sensors and backup camera. I have the small screen in the rear view mirror. It went out over a year ago, some days it’ll be blue, but most of the time nothing shows at all. The backup sensors went out probably around the same time. I’ve checked the wiring harness and everything looks good.

I’ve read online about a possible reset, somehow with a usb? I’ve read that one backup sensor will shut down the other 3. I’ve checked the fuses many times (it’s a project I’ll attempt to fix every few months). I really don’t know what else to try. I’d like to do this without bringing it to a shop.

any advice?