Remove "Upgrade" notification

To eliminate any confusion for our end users, we’d like to remove the “Upgrade” notification in the portal as follows:

We have disabled automatically checking for upgrades, but not before it started showing up for our users. Is there a file we can remove on the MIFI that will make this little orange dot next to “Upgrade” go away?

You can login to the linux system CLI(command line interface).
Use ssh protocol with root name,password is null or you set web password,and then execute the uci command:
uci set glconfig.autoupdate.firmware_path=‘https://xxx’; uci commit glconfig;reboot