Zyxel DX3301-T0 missing Firmware Update "voice"

Marino

Good morning,
I have a Zyxel DX3301-T0 with Firmware version V5.50(ABVY.3.4)C0.
Since the firmware is a bit old, I would like to update it. I have already downloaded the new Firmware V5.50(ABVY.5.4)C0. There is only one problem. I cannot update it because I cannot see the Firmware Update entry under the Maintenance group.
I also tried with other browsers (Edge, Chrome, FIrefox) looking for this entry but without success. Ideas on this?

Marino

Peter2

You have to be logged in with admin rights to see all options .

Are you shure to have the firmware with a "C0" ?

Marino

https://community.zyxel.com/en/discussion/comment/77360#Comment_77360

To clear up doubts about the version I publish a screenshot. I also confirm that the login is through the administrator username (the device has been reset to factory settings).

Peter2

Sorry but thats is impossible . Can you control the righst of Admin in maintainance ? It has to be in admin group .

I created another admin User to eleminate access via WAN by default .

Peter2