It also can't be removed like you can with software.
Don't update your firmware unless you think it is necessary.
The picture shows an example of the Firmware Upgrade section under Administration on a Linksys network router.
Point the firmware upgrade section to the firmware file you downloaded earlier and start the upgrade.
One good reason why your router manufacturer may put out a firmware update is because they are trying to fix a vulnerability that was detected in the current firmware, updated firmware is similar to system updates (as in Microsoft’s Windows Update).
As bugs are found and corrected, updated firmware is released.
With most network routers the firmware update will end with and should be saved to a place that will be easy to remember, such as your Desktop.
The computer world is growing fast and to keep up it becomes necessary to update your router firmware periodically.Updating the firmware (a process often called "flashing the firmware") can help a router work better and sometimes even repair an annoying bug or add support for faster internet speed.This is especially when a router reset doesn't help.Firmware acts as the foundation upon which your router runs.This is somewhat permanent in that it can't be changed until a new firmware update replaces it.This becomes a much smaller risk when a cable is connected directly from the router to the computer you will be using to update the firmware.