If you have acquired a verified 2021 EPON firmware file for the

: Disable your computer's firewall and antivirus software temporarily, as they may block the flashing tool's communication with the ONT. Conversion Steps

Go to the > Upgrade page and click on Browse to select the EPON firmware file. Click on Upgrade to start the firmware upgrade process.

In the section, click Browse and select the 2021 conversion firmware file.

is a commonly requested resource for customizing network infrastructure, it carries high risks of permanent device failure. It is recommended to use official OLT-compatible hardware whenever possible rather than forced firmware conversion.

admintelecom (Note: Some regional variants use Nwt7ZsuMom or TotalControl4$ ). Navigate to System Tools > Configuration File .

Try a hard reset (holding the Reset button for 10-15 seconds).

EPON networks do not use GPON SNs. Instead, they authenticate devices via MAC address filtering or a specialized Logical Link Identifier (LLID) password. Log into the HG8245H5 web GUI. Locate the or LOID Settings menu.