Downloads and Resources
Vigor 3912 Series - Older Firmware
| Firmware Information | |
|---|---|
| Current Version | 4.4.5.1 Release Notes |
| Release Date | 11/09/2025 |
| 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:
Stable - Formal releases of firmware incorporating any bug fixes and firmware improvements.
Mainline - Incorporates new features, 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.
Stable - 4.4.3.6 - Latest release
Mainline - 4.4.5.1 - Adds VRRP TR-069 parameters, and improves WUI security, features and system stability
