How do I perform firmware recovery on USG Flex H series models?

Zyxel_Jeff

Question :

How do I perform firmware recovery on USG Flex H series models?

Answer :

Below are the steps using the USG Flex 200H with V1.31 firmware as an example.

STEP1.
Boot up the device and wait for the console message: 'Press any key to enter debug mode within 3 seconds. ..................' then enter the debug mode.

STEP2.
Enter atkz -f -l 192.168.1.1 This sets the FTP server IP address on the USG Flex 200H.

STEP3.
Enter atgof and wait for the message: 'Connect a computer to port 1 and FTP to 192.168.1.1 to upload the new file.' to appear.

STEP4.
Set a static IP address on the PC to 192.168.1.XXX (e.g., 192.168.1.2).

STEP5.

Connect the Ethernet cable from the PC to port 1 of the USG Flex H model. Open the Command Prompt on the PC and enter ftp 192.168.1.1 to connect the USG Flex 200H and login to the device using the account admin.

STEP6.

On the PC, enter: bin

STEP7.

On the PC, enter: put C:\131ABWV0C0.bin This uploads the .bin file to the USG Flex 200H.

C:\Users\employee>ftp 192.168.1.1
Connected to 192.168.1.1.
220-=(<>)=-.:. (( Welcome to PureFTPd 1.0.11 )) .:.-=(<>)=-
220-You are user number 1 of 50 allowed
220-Local time is now 09:49 and the load is 0.04. Server port: 21.
220-Only anonymous FTP is allowed here
220 You will be disconnected after 15 minutes of inactivity.
530 You aren't logged in
User (192.168.1.1:(none)): admin
230 Anonymous user logged in
ftp> bin
200 TYPE is now 8-bit binary
ftp> put C:\131ABWV0C0.bin
200 PORT command successful
150 Connecting to port 1044
226-1786.8 Mbytes free disk space
226-File successfully transferred
226 1.605 seconds (measured here), 110.89 Mbytes per second
ftp: 186657587 bytes sent in 1.60Seconds 116807.00Kbytes/sec.
ftp>

STEP8.

Once the firmware update is successfully applied to the USG Flex 200H, the device will reboot automatically.