Before downloading the "Firmware Huawei HG8245H5 GPON to EPON 2021 Exclusive," you must prepare. Making a mistake here can brick your device permanently (requiring a JTAG programmer to fix).
If your HG8245H5 indeed has a (e.g., some revision with SD5117/5118 + optical module supporting both), then a proper firmware feature would look like: firmware huawei hg8245h5 gpon to epon 2021 exclusive
If you have an HG8245H5 gathering dust because you switched ISPs, this firmware is your golden ticket. It transforms a useless GPON-locked gateway into a high-performance EPON router. However, respect the hardware—use quality fiber jumpers, monitor your optical power, and always keep a backup of the original flash. Before downloading the "Firmware Huawei HG8245H5 GPON to