I tried to downgrade the software. I selected that option (Tools, Create Downgrade USB) , uploaded the update, and it said “completed”.
Now when I try to update Sync 3 again, it won’t accept any version of the software.
SYNC Region: ANZ
Navigation Variant: Non Nav
Manufacturer Year: Pre MY20
Install Type: Retrofit
Old SYNC Version: 3.4.21194
New SYNC Version: 3.3.19052
Do you have a error message, if so what is it?
I tried to downgrade the software. I selected that option, uploaded the update, and it said “completed”.
Now when I try to update Sync 3 again, it won’t accept any version of the software.
Update Method: CyanLabs Syn3 Updater
Syn3 Updater Version: 2.14.2.0
Syn3 Updater Documentation Read: yes
Syn3 Updater Log File
CYANLABS - SYN3 UPDATER - V2.14.2.0
Branch: Stable
Operating System: Microsoft Windows 11 Home Single Language (2009)
PREVIOUS CONFIGURATION
Version: 3.4.21194
Region: EU
Navigation: False
Install Mode: Auto-Detect (autoinstall)
Install Mode Overridden: False
My20 Protection Enabled: Disabled / Not MY20
DESTINATION DETAILS
Mode: Drive
Model: BUFFALO USB Flash Disk USB Device
Size:
FileSystem: exFAT
Partition Type: MBR
AUTOINSTALL.LST
; CyanLabs Syn3Updater 2.14.2.0 Stable - Autoinstall Mode - Enforced Downgrade
[SYNCGen3.0_ALL_PRODUCT]
Item1 = APPS - 4U5T-14G381-AN_1552583626000.TAR.GZ
Open1 = SyncMyRide\4U5T-14G381-AN_1552583626000.TAR.GZ
Options = AutoInstall
FILES (1)
4U5T-14G381-AN_1552583626000.TAR.GZ (479.7MB)
LOG
[11-08-2026 13:25:28] Selected Region: - Release: Enforced Downgrade - Map Version:
[11-08-2026 13:25:28] Install Mode: Auto-Detect (autoinstall) Forced: False
[11-08-2026 13:25:28] MY20 Protection: Disabled / Not MY20
[11-08-2026 13:25:28] Formatting USB drive
[11-08-2026 13:25:28] Re-creating partition table as MBR and formatting as ExFat on selected USB drive
[11-08-2026 13:25:34] Checking Existing File: 4U5T-14G381-AN_1552583626000.TAR.GZ
[11-08-2026 13:25:36] Validated: 4U5T-14G381-AN_1552583626000.TAR.GZ (Skipping Download)
[11-08-2026 13:25:36] Preparing USB drive
[11-08-2026 13:25:36] Checking Existing File: 4U5T-14G381-AN_1552583626000.TAR.GZ
[11-08-2026 13:25:42] 4U5T-14G381-AN_1552583626000.TAR.GZ exists and validated successfully, skipping copy
[11-08-2026 13:25:42] Generating Autoinstall.lst
[11-08-2026 13:25:42] ALL FILES DOWNLOADED AND COPIED TO THE USB DRIVE SUCCESSFULLY!