My car screen turned black when trying to downgrade through the app
2022 Ford Explorer
SYNC Region: ROW
Navigation Variant: Nav
Manufacturer Year: MY20
Install Type: OEM
Old SYNC Version: 34.23188
New SYNC Version: 34.21194
Do you have a error message, if so what is it?
ONLY BLACK SCREEN
Update Method: CyanLabs Syn3 Updater
Syn3 Updater Version: 2.12.5.0 (STABLE)
Syn3 Updater Documentation Read: no
Syn3 Updater Log File
I DON'T HAVE
It seems you reformatted a MY20 unit, and of course bypassed all the warnings Syn3Updater gave you.
I’m not sure why you didn’t provide a log, but ik also unsure why you did what you did… Or why aren’t you civil and say things like “hello”…
Either way, it’s dead.
Your options are buying a new APIM or trying to revive it by using this tool, which is not for everyone since it requires certain knowledge → GitHub - bigunclemax/sync3flash: Ford Sync 3 reformat flash tool
Sorry for not welcoming me and this was due to my confusion
What I did I think is not a reformat
The device is still working and so is the radio, only the screen is black
Is it really dead!!!
i just use the option to create downgrade USB
and after install on my apim the sound is w
Wait, that’s not a reformat then…
Try a soft reset…
Do you have Forscan and an adapter?.
yes, I have
Ok, then do this:
it works … 
by download files from ford website includes license
thank you for fast replay
Awesome that you recovered it…
Can you elaborate on the “files from Ford” part?.
Syn3Updater uses Ford’s files, so I’m not sure what you mean…
This is the file which has all instructions from Ford website
And i follow it to get my screen as before
I think it was a license issue or update issue
Thanks!, but I’m confused…
If your unit is NAV, why were you trying to free some space up by downgrading to 3.3?.
Also, do you have the autoinstall.lst file from the USB that “revived” the unit?.
My issue was at Radio station logo after update I lost it…so I thought if i get back to previous version it will appear again
I think there’s another thing at play here… but I won’t be sure until you share the autoinstall.lst file that “revived” the unit…
License has nothing to do with Sync3 as an operating system on its own, it’s for Maps…
So, if you had a black screen it was not due to anything related to a map license…
What could had happened is that when you went from 3.4 to 3.3, some incompatible asbuilt value prevented 3.3 from showing a picture (a wrong theme, for instance)… And maybe, the USB you used after that fixed that by upgrading to a 3.4 version…
All of this is a guesstimate since:
Anyways, good thing that you recovered it.
The steps I took are as follows:
Rewrite as built using Forscan
Update APIM using Forscan by selecting update apim module
These steps did not solve the problem and the screen remained black but the radio worked
After that I connected the attached USB autoinstall.lst file and left the car with disappointment
I went at the end of the working day to reset using Forscan or look for another way but I was surprised that the screen returned to work normally
[SYNCGen3.0_3.4.23188_PRODUCT]
Item1 = HB5T-14G386-TAC
Open1 = SyncMyRide\HB5T-14G386-TAC.tar.gz
Item2 = HB5T-14G386-VHA
Open2 = SyncMyRide\HB5T-14G386-VHA.tar.gz
Item3 = 4U5T-14G424-CG
Open3 = SyncMyRide\4U5T-14G424-CG.tar.gz
Item4 = 4U5T-14G421-CAG
Open4 = SyncMyRide\4U5T-14G421-CAG.tar.gz
Item5 = 4U5T-14G421-CBG
Open5 = SyncMyRide\4U5T-14G421-CBG.tar.gz
Item6 = 4U5T-14G421-CCG
Open6 = SyncMyRide\4U5T-14G421-CCG.tar.gz
Item7 = 4U5T-14G421-CDG
Open7 = SyncMyRide\4U5T-14G421-CDG.tar.gz
Options = AutoInstall
[SYNCGen3.0_3.4.23188]
Item1 = 4U5T-14G421-CEG
Open1 = SyncMyRide\4U5T-14G421-CEG.tar.gz
Item2 = 4U5T-14G421-CFG
Open2 = SyncMyRide\4U5T-14G421-CFG.tar.gz
Item3 = 4U5T-14G421-CGG
Open3 = SyncMyRide\4U5T-14G421-CGG.tar.gz
Item4 = 4U5T-14G421-CHG
Open4 = SyncMyRide\4U5T-14G421-CHG.tar.gz
Options = AutoInstall, Include, Transaction
[SYNCGen3.0_ALL]
Item1 = 4U5T-14G421-CJG
Open1 = SyncMyRide\4U5T-14G421-CJG.tar.gz
Item2 = 4U5T-14G422-CAN
Open2 = SyncMyRide\4U5T-14G422-CAN.tar.gz
Item3 = 4U5T-14G422-CBN
Open3 = SyncMyRide\4U5T-14G422-CBN.tar.gz
Item4 = 4U5T-14G422-CCN
Open4 = SyncMyRide\4U5T-14G422-CCN.tar.gz
Options = Delay, Include, Transaction
Thank you for the detail…
Well, I’m unsure what happened, since that AUTOINSTALL.LST does not have a Sync3 upgrade, it’s just map related things…
Anyways, glad it’s working now!.
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