Arris Firmware update can be easily done without the help of a technician. So here are the steps you must follow for Arris SBG6700-AC firmware update. For this, you must type 192.168.0.1 in the URL section. Afterwards, go to the download section and download the most recent version of the firmware. Return to the web interface and follow the step- by- step process to complete Arris router update firmware.