Navigate to > Device Management > Firmware Upgrade (locations vary slightly by current version). Click Browse and select your .bin firmware file. Click Upgrade .

: The GM219-S is a robust, budget-friendly choice for users needing an XPON device that supports both standard home internet and advanced hotspot configurations via its versatile firmware.

Disclaimer: Modifying firmware on ISP-provided equipment may violate terms of service agreements. This write-up is for informational purposes only.

China Mobile variants and global OEM versions. Customization: Supports custom ISP logos and names.