Patching old bugs that the ISP has neglected to update.

. Check the sticker on the bottom of your device for specific details. Navigate to Maintenance: System Tools Firmware Upgrade Note: On some versions, this is under Maintenance Software Upgrade Upload the File: to select your firmware file and click Wait for Reboot:

Even if you find a newer firmware version online, the device will likely reject it because the digital signatures don't match the carrier's specific requirements. 2. The Quest for "Superadmin"