Here’s some background first. 2020 explorer a Apim died Completely. No audio black screen nothing. APIMs are on backorder from ford. I took a sync 3.0 Apim in a 2018 and I updated it to 3.4 once at 3.4 I removed from the 2018 and installed into the 2020 explorer. I pulled the old Apim asbuilt first and programed it into the 2018 module.
I have two issues now. Screen doesn’t brighten. Settings doesn’t change the brightness it’s Dim. Turning on and off the splash screen and buttons are bright until it full loads. Tried changing the themes didn’t work. Was ford classic.
Second issue. The FCFIM volume knob. Skip back and skip forward and then button do not work. I can use steering wheel for tune and volume.
Tried to update the Apim with ford FDRS, but it kicks an error and ford tells me incompatible hardware. I think this is a firmware issue? Should I try to manually update firmware with Forscan ? 
Wanted to get some opinions before wasting more time on it.
At one point the ford timeless was bright, then I enabled nav and it went Dim again. Shouldn’t my splash screen be explorer and ford my2020 theme?