SYNC 3 3.0 to 3.4 fail black screen

2016 LIncoln MKX. I had SYNC 3.4 installed fron the F-150 forums. The APIM was recently changed and version was downgraded to 3.4. I then bought the latest mapsand loaded them without issue. I figured I would upgrade it to the latest version of 3.4 offered in SYNC3Updater since my wife and I preferred the visuals we had before. Downloaded the files. Did the file check that it isn’t a MY2020. Passed the test. Inserted the USB and the screen went black for a few minutes. Never came back. I pulled the USB figuring I’ll restart the car and plug it in. No dice. Screen stayed blank. Tried different methiods but nothing. Even reprogrammed ite APIM with Forscan and the files it had downloaded. I also got the part number via Forscan and it was a non-MY2020. I also noticed that my USB flash drive wouldn’t light up when i put in the USB port. ANy suggestions?

SYNC Region: NA

Navigation Variant: Nav

Manufacturer Year: Pre MY20

Install Type: OEM

Old SYNC Version: 3.0.20204

New SYNC Version: 3.4.23188

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

Update Method: CyanLabs Syn3 Updater

Syn3 Updater Version:

Syn3 Updater Documentation Read: yes

Syn3 Updater Log File


Is your APIM responding to Forscan? Can you do a module reset?

There are a few things that do not add up, so to make things clearer share:

  • the APIM model
  • a photo of the APIM 's back (if you have it)
  • the log for the USB you used

Yes the APIM responded. I tried a model reset and I even disconnected the battery

Sorry I forgot to take down the model number of the APIM. Which log file?

We need to see a pic of the back of the APIM. Odds are you have a 2020+ APIM.

I can’t take the dash apart. I figured I’d ask here or else back to the dealer it goes. I’m wondering though if it’s a 2020+ APIM why not update it to 3.4?

Some information that you provided is contradictory and you are failing to provide meaningful troubleshooting information, so this is all a guessing game.

Since you are not willing to unmount the unit, at least provide the APIM’s model that can be read through Forscan. I’ve already asked for this before :point_down:

I’ll hook up Forscan in the morning and copy the APIM info. Is there any other missing info?

Just the APIM model.
Here’s the deal: what you are describing is basically a result of reformatting a MY20 unit.
You mentioned the APIM was replaced, and we do not know what the unit is at the moment.
You also mentioned Syn3updater didn’t flag it as MY20 (I’m assuming you followed the procedure to check it correctly), so there are 2 possibilities here:
A) The unit is MY20 but has a new and unseen model until now, and you are the first one to reformat a model like that
B) The unit is not genuine and the reformat killed it.

Also, share the log for the USB you used for upgrading, it’s saved both on the USB and in Syn3updater’s log folder.

A 2016 MKX came with Sync 2 so this is a retrofit to SYNC 3. Did someone else do this or did you install this yourself?

Not sure what you mean by this. The F150 forums don’t have an install shop I am aware of.

This is either a MY20 APIM or a cheap Chinese piece of crap APIM.

Here is the log when i created the USB key. I did perform the check to see if it’s a MY20. It installed a file, went to the vehicle, it said install complete and came back checked a file with SYN3Updater and it said not MY20. So I continued creating the USB key and said no it’s not MY20.

Branch: Stable
Operating System: Microsoft Windows 11 Home (2009)

Version: 3.0.20204
Region: NA
Navigation: True
Install Mode: Auto-Detect (reformat)
Install Mode Overridden: False
My20 Protection Enabled: Disabled / Not MY20

Mode: Drive
Model: Samsung Flash Drive USB Device
Size: 29.9GB
FileSystem: exFAT
Partition Type: MBR


; CyanLabs Syn3Updater Stable - reformat Mode - Sync 3.4.23188 NA

Item1 = RWDataCleaner TOOL - PU5T-14G386-BB_1690840002000.TAR.GZ
Open1 = SyncMyRide\PU5T-14G386-BB_1690840002000.TAR.GZ
Item2 = REFORMAT TOOL - 1u5t-14g386-cb.tar.gz
Open2 = SyncMyRide\1u5t-14g386-cb.tar.gz
Options = AutoInstall

FILES (20)
GB5T-14G386-AA_56065.tar.gz (43.1KB)
Sync_W296G057_2LMTJ8KR3GBL58707.xml (10.3KB)
1u5t-14g386-cb.tar.gz (8.5MB)
PU5T-14G386-BB_1690840002000.TAR.GZ (3.2KB)
5U5T-14G391-CS_1660783942000.TAR.GZ (385.5MB)
4U5T-14G423-CC_1615429225000.TAR.GZ (564.2MB)
NU5T-14G381-AD_1689364279000.TAR.GZ (869.8MB)
4U5T-14G421-CJF_1682462901000.TAR.GZ (693.3MB)
4U5T-14G421-CHF_1682462859000.TAR.GZ (1006.4MB)
4U5T-14G421-CFF_1682462169000.TAR.GZ (1.1GB)
4U5T-14G421-CGF_1682462518000.TAR.GZ (1.1GB)
4U5T-14G421-CEF_1682461522000.TAR.GZ (1.1GB)
4U5T-14G421-CDF_1682463264000.TAR.GZ (1.3GB)
4U5T-14G421-CCF_1682461368000.TAR.GZ (1.1GB)
4U5T-14G421-CBF_1682461295000.TAR.GZ (1.1GB)
4U5T-14G421-CAF_1682461100000.TAR.GZ (1002.3MB)
4U5T-14G424-CF_1682464057000.TAR.GZ (1.6KB)
4U5T-14G422-CAM_1682463335000.TAR.GZ (1.2GB)
4U5T-14G422-CBM_1682463581000.TAR.GZ (784.2MB)
4U5T-14G422-CCM_1682463747000.TAR.GZ (536MB)

Early 2016s came with SYNC 2. SYNC 3 was introduced mid year. I have one of those. The APIM was a warranty replacement.

I got the APIM replaced again under warranty. It’s running 3.0.20204. Which version of 3.4 could I upgrade to and what would be the best method since I don’t have the part number of the APIM? Can I just use the MY20 method?

I said this a week ago and it’s still valid, we are still waiting for the APIM model.

I got bored of playing the guessing game, so I will point you towards our extensive documentation, all answers are there:

Try not to brick it this time.

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Will FORSCAN give me the right model number? I really don’t want to take a part the dash to see the APIM. I started the upgrade process with SYN3 and will come back and post the file I get

You never had to, this is (again) from 7 days ago: :point_down:

Now that you have a running APIM you can run the interrogator log and it will be shown there as well.

Sync_W325BP21_2LMTJ8KR3GBL58707.xml (10.3 KB)

I would treat that as MY20 until proven otherwise, similar model numbers had been reported as MY20 there’s a single reference to that APIM in our hardware db as NO-MY20, which does not really tell us anything. The DB is user driven, MY20 units that does not follow the normal naming convention are only discovered by users.

It’s now time for you to decide if you are willing to unmount the unit or not.
If you do, take a picture of the sticker and share it with us.
Otherwise, do not touch it, leave it running 3.0.

What’s your decision?.