USG FLEX 500 firmware update

Claus_Kysthusene · April 2023

Hi

Can I update firmware from

V5.00(ABUJ.2) to V5.35(ABUJ.0) on Flex 500

Claus

PeterUK · April 2023

Should be fine but backup the config

older firmware can be found here

https://support.zyxel.eu/hc/en-us/articles/360013941859-Security-Products-Firmware-Overview-FLEX-ATP-USG-VPN-ZYWALL-

Zyxel_Kevin · April 2023

Greeting Forum, it can be upgraded directly to 5.35.
We also suggest you save the startup-config.conf before performing firmware upgrade.

Thank you

Claus_Kysthusene · October 2023

Hi

Now I am on firmware 5.35

can I Upgrade without eny problem V5.35(ABUJ.0) to V5.37(ABUJ.0) on Flex 500

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