Hey Kamehana - Does the web app on this Pixelblaze report in the top right that it’s running firmware v2.7, or are you seeing “v2.7” printed on the microcontroller board?
On v2, the firmware after v2.17 (I believe) will allow you to upgrade with one click from the Settings page as long as it’s configured in WiFi client mode and is connected to a wireless network that can access the internet. Firmware prior to that will require that you upload a .stfu firmware file to http://<ip_address/update.
At the time of writing, the current firmware for the v2 board is firmware 2.29 and you can download the .stfu file here.