: Always backup your current configuration file via System Tools > Configuration File before proceeding.
If you're looking for specific firmware or guidance, I recommend checking Huawei's official website, support community, or reputable third-party forums and websites.
Just verified that the Huawei HG8245H can be converted from GPON to EPON. A lot of guides say it's impossible or that you need the specific EPON model (HG8245E), but if you have the right firmware, the H-series handles it fine.
After reboot, check:
Don't throw away that old ISP router—repurpose it! 🚀