Software upgrade for G2

how do you configure a G2 to upload latest firmware?

http://wifi.help.mimosa.co/gw-ug-firmware-update

I believe you can also do it through the Mimosa Cloud Interface, if the G2 is connected to your Mimosa Cloud Account.

You should open an account from Mimosa Cloud (https://cloud.mimosa.co) and you can download latest firmware from update firmware page.