Before initiating any software changes, navigate to the menu, find the Backup & Restore section, and download a copy of your current configuration file. This allows you to revert your settings instantly if the update resets the device to factory defaults. Step 3: Executing the Update There are two primary methods to update the firmware: Method A: Online Update Navigate to Advanced > System > Update . Click on Check for Updates .
Typical firmware versions for the B311-221 include: huawei b311221 firmware portable