I have to say that after years of playing around with Sync 1, 2, and 3 versions that I have never seen this issue. But there is always a first.
This looks like it could be a screen issue. Did you disassemble anything in the dash? Particularly the LVDS video cable from the Sync unit to the screen…
This could be due to an interrupted or corrupted reformat also, particularly the screen drivers. The unit was previously on Sync 3.3.20204 and was reformatted to Sync 3.4. You could try downgrading the unit to Sync 3.3.19052 and reformatting again.
See if you can run the APIM Interrogator Utility and post the results here. This will tell us what model of APIM is installed and the software at this point.
no I have never disassembled anything on the car, I tried to reinstall the 3.3.19052 but the problem remains
Versione 4U5T-14G381-AN
Modello di APIM: H1BT-14G371-AHA
Tipo di APIM: Non-Navigation
Capienza APIM: 16GB
APIM Spazio Libero: 6.9G
02/01/2023 12:39:33 +00:00
yes the screen is clear. and reacts immediately to commands. it happens that for one trip it doesn’t give me problems and on the next trip it moves from one place to another
before the update (version 3.0.20204) the sync didn’t have any kind of problem it worked very well, after the update this problem started. is it possible to go back to the official ford version? can you solve the problem?
Please, in the future, use the edit button instead of posting 2 consecutive messages, thanks.
About going back to 3.0, you can’t do it (it’s clearly stated in the documentation).
I understand you feel like this is related to the upgrade itself, but out of thousands that have performed this procedure, you are the first one to report this kind of issue.
This seems to be a hardware issue, not software related.
Besides, you already tried installing another Sync3 versio, right?, so what’s common about your setup while changing versions?, the hardware.
Could the upgrade process trigger (not cause, trigger, it’s not the same) some hardware malfunction?, it’s possible, but not probable. I mean, if for whatever reason your unit was already unhealthy (without you knowing it), reformatting it could trigger some issues, since new memory locations are used. Again, it’s possible, not probable.
I believe you have already master reset, right?.
This is what I would do if I were you:
Perform a master reset (if you haven’t done so)
Unplug the car’s battery overnight (if possible)
If previous steps fail, unmount the unit (APIM + Screen), make sure all connectors have a solid and clean connection.
Did you use the reformat tool to go back to 3.3.19052? If you did not, changing versions will do nothing for the issue. If you did not reformat, doing so could clear the issue if it is related to the video drivers. From the description above, this does sound like a hardware issue that was waiting to appear. Like we said, this is the first problem like this we have seen.
You should follow the steps that @SaNdMaN outlined above.
as you recommended I formatted to version 3.3.19052, tried to remove the battery. I disassembled the sync to see the links on the back but I’m fine. the problem persists. what should i do now? above you talked about the master reset, do you mean from the sync settings?
This could be bad connections on the video or power connectors, etc., also. Especially grounding. I searched around and found a similar issue with Explorers, etc.
FORD TSB #SSM 49245
Some 2020 Explorer/Aviator vehicles built on or before 30-Sep-2020 may experience an intermittent or constant blank/black screen on the center infotainment display due the low voltage differential signaling (LVDS) cable at the SYNC accessory protocol interface module (APIM) not being fully seated. Verify that the connector is fully seated into the APIM prior to performing any other diagnostics or repairs on the vehicle for this concern. If the connection is found loose, re-seat the connection and retest.
