4" Display Black After Software Install

Trying to install a 4" SYNC 3 screen in place of an 8" SYNC 3 screen. If I swap the 4" without any software changes the display and everything works but it tries to display an 8" display on a 4" screen so I only see the top left quarter of the display. When I install SYNC 3 4" display software the install completes but then the screen just stays black. If I force restart (vol+seek) the Ford logo appears and then stays black. Any help is appreciated. Thank you.


SYNC Region: NA

Navigation Variant: Non Nav

Manufacturer Year: Unknown

Install Type: Retrofit

Old SYNC Version: 3.4.22251

New SYNC Version: 3.4.22251

Do you have a error message, if so what is it?
Screen is black

Update Method: CyanLabs Manual Method
2020 Transit Mar 29 APIM.abt (495 Bytes)

So this is the asbuilt you shared over Discord:

;Block 1
7D0G1G1022A0C020013
7D0G1G2000806008068
;Block 2
7D0G2G143410105C024
7D0G2G2820190A8B046
7D0G2G3440525
;Block 3
7D0G3G10000000100DC
;Block 4
7D0G4G100000AF114EB
7D0G4G20000DD
;Block 5
7D0G5G117FC181A395B
7D0G5G2D0AE
;Block 6
7D0G6G1502E
;Block 7
7D0G7G129003300003B
7D0G7G20000A3B40037
7D0G7G30056567C0009
7D0G7G4C7A9
;Block 8
7D0G8G1000500C400A9
7D0G8G28000074010B8
;Block 9
7D0G9G10000000000E1
7D0G9G20000000000E2
7D0G9G30100000000E4
7D0G9G40000000000E4

Do you happen to have a screenshot of Forscan’s for that?, it’s always easier to see it that way. This is what you are looking for:

I’m not seeing anything that stands out as wrong.
Just as a test, try changing this to 01 instead of 00:

DE02/7D0-03-01: xxxx-**xx-xxxx

I will ASAP, emergency service call it’ll be about 12 hours.

Curious if this may help. I have access to the newer vehicle that the 4" screen is coming out of. Would it be beneficial to post that information side by side this one? Thanks again.

Yes, you can do that as well. But what’s odd about your situation is that screens are basically interchangeable as far as I know, and the only reconfiguration needed is when installing a 10 or 12 inches one…

Try 06 for the 4" screen.

I have tried both configurations and neither get the display working. I have sound and volume adjust but no other functions.

Tried pulling info from the vehicle the screen came out of but it’s a 2025 and it says the information isn’t loaded in forscan yet. Is it possible it’s a software issue with the 22251 4” version? Should I try an older version of Sync?

Have you tried creating a new profile for that vehicle?.

I do not think that’s the case, other screen swaps that I remember of did not require any particular version. You can try with NU5T-14G381-BA, which is a previous version from -BB.

I do not have a list of older builds, but I can “infer” them from the size…

I did start as a new vehicle yes. It says the data has been uploaded and if I’m a paid user to contact support.

I will try that version now and report back.

Older version installed. 06 and 01 tried in forscan, same outcome.

I do not think it’s related to Sync3 version, but if you want to test another builds you can:

  • go to SYNC 3 APIM Software (IVSU) Database - CyanLabs
  • leave only Application selected
  • sort the results by build in decreasing order. 3.4s that are about 800-900MB are for 8 inches, the ones about 400-450MB should be for 4 inches. (that’s my reasoning at least)

But I feel there’s something else at play here, since you should not need to modify anything (unless you had a custom boot/theme, which is not the case). So I would no try to install older builds, you should be able to run the latest without issues.

You have 2 screens to test with, right?, one 4 inch and the other one 8 inches…
If so, have you tried connecting the 8 inch one while the 4 inch package is installed?

I have connected the 8” with the 4” software installed and I have the same outcome. Black with radio playing and volume control.

Pardon my ignorance as this is my first time doing this. How many files should be in the SyncMyRide folder when doing the manual install? When I made the auto update for 8” through the program it inserted 4 .tar files but the 4” download only has one. Am I missing a step and needing 3 other files for the 4” install?

Thanks, that confirms that this has nothing to do with the screen.

The way normal Sync3 updates work is it will pick whatever file is in the SyncMyRide folder that’s referenced by the autoinstall.lst file that’s located on the USB’s root.

And since you are only changing Sync3 version, only the APPS package is required.

Understood. Based on everything I’ve researched I don’t know what to attempt next.

Can you please share the APIM model here?.
Also, have you tried an APIM module reset from Forscan?
Do you have any DTC?.

I have no codes and I have done the reboot from within Forscan. I don’t know where to find the APIM model.

You can see that in the module’s list from Forscan.

I found APIM part number : LU5T-14G371-BKC

Thanks. Since it’s MY20, keep MY20 protection active if you ever use Syn3updater to avoid a reformat/downgrade on it, since it will brick it.

Going back to your current issue, how bad do you want this?. Because there’s something else I would try: swapping everything, screen + APIM… But it would not be as simple as plug and play…

So maybe wait a few days to see if anyone else has anything to say about this particular issue…