I was updating my Sync3 it said to reboot and then blank screen. I got forscan and downloaded the firmware to get it to come up but no Ford logo. It goes thru and install the firmware fine without a brick message. My APIM shows a JJ5T-14G370-EBA sticker which a quick google search shows non navigation but I did have navigation and confirm it worked as intended. Forscan shows however a HB5T-14G3701-CG version on the board. Anywho after that I was thinking that the screen was the one for the APIM. Turns out that it is for a Sync 4 model. My question is that if I went the Linux Route and tried the flash, should the screen power on after reset to Factory? Should the APIM Flash restore the screen? I already ordered a Sync 3 screen from ebay but it has not shipped so I was going to ask before they ship. Thank you.
From what i can see you didnt update sync as the start and desired version no’s are the same. As for firmware if you restore something to Factory it behaves as factory.
I was trying to fix the blank screen issue. Since I had a blank screen I downloaded the firmware by Forscan. Yes the APIM is 2019 and the Screen is 2023 and thus now I have a blank screen. Screen is my20 and APIM is 2019 or maybe 2018. My question; I will rephrase, should a brand new sync 3.4 unit allow a 2020+ screen to work?
Since you didn’t provide the information required by the template, this is just a guesstimation: your black screen is due to a reformat on a MY20 screen installed on a NOT-MY20 APIM.
If so, you can recover the unit by just simply installing a NOT-MY20 screen to complete the process.
You probably have a K series APIM if it is a 2019 model. Thats a good thing.
Like Sandman said and you already ordered, A pre 2020 screen will solve your problem. Your APIM is just fine and one of the preferable ones in my opinion.