Downloads and Resources
Vigor 3912 Series
| Firmware Information | |
|---|---|
| Current Version | 4.4.5.3 Release Notes |
| Release Date | 01/05/2026 |
| Support Language | English |
| Supported Models |
Vigor 3912 |
Firmware Filenames:
The file name extension of the firmware controls which upgrade type is performed. If the file name is unchanged (e.g. is xxxx.sfw) then the upgrade will just upgrade the firmware, whereas renaming the firmware to a .rst extension will wipe all settings back to factory defaults when upgrading the firmware.
Mainline and Stable Firmware Branches:
Mainline - Incorporates new features, bug fixes and firmware improvements.
Stable - Formal releases of firmware incorporating any bug fixes and firmware improvements.
To change firmware from one branch to another as a precaution take a configuration backup before performing the firmware upgrade.
Latest versions: Stable - 4.4.3.8 Mainline - 4.4.5.2
The resources on these pages are for users in the UK and Ireland only. If you are outside of the UK/Ireland, please contact your local supplier, the local support resource in your country or use the DrayTek International site instead
