| Symptom | Likely Cause | Solution | |---------|--------------|----------| | Web upgrade hangs at 99% | File mismatch or corrupt | Power cycle (risk) → TFTP retry | | Boot loop after upgrade | Wrong hardware version | Serial console + U-Boot recovery | | No IP from DHCP after upgrade | Config reset | Manually set 192.168.100.x and re-configure VLAN/PPPoE | | Telnet says Unknown command | Web UI disabled TFTP method | Use Web UI only or enable debug mode |
If you have a generic (unlocked) version or your ISP has instructed you to update manually, follow these steps: Preparation: Download the Firmware : Obtain the correct Hg8245q Firmware Upgrade
This is the most common method for end-users. Do not skip any step. | Symptom | Likely Cause | Solution |