What should I do if the device failed to be upgraded to the latest firmware?

Zyxel_James

Please follow the procedure to upgrade the firmware

Step 1. Make sure you have on-site local support that able to reach the device
Step 2. Unplug all WAN connections.
Step 3. Access the device via LAN IP.
Step 4. Copy startup-config.conf to recover.conf. Download "recover.conf" to your PC.

Step 5. Switch to standby partition.
Step 6. After device boots up successfully with the standby partition, upload recover.conf to the device.

Step 7. Go to MAINTENANCE > File Manager > Firmware Management. Stay on this page. (Note: Do NOT switch to other pages.)

Step 8. Open Web Console or SSH. Enter the command.

Command: copy /conf/recover.conf /conf/startup-config.conf

(Note: Do NOT enter “write” on Web Console.)

Step 9. Upgrade firmware to another partition (original running partition)

*If your device is in Nebula mode and fails to upgrade, please press the reset button until the SYS LED begins to blink. (It usually takes 10 -15 seconds.)