In order to download the latest firmware, your Poly needs to be connected to the internet. This can be achieved in two ways - having Poly connected to your home network or having it connected to your phone's hotspot.
To find the current version on your Poly, you need to have it in HotSpot mode. Hotspot mode is when the Poluy Status (p.status) light is flashing blue and green. Power your Poly up and wait for the P.Status light to come on. It will be in one of 3 modes:
Flashing blue/green - Hotspot mode, you can move to the next step.
Solid color - you need to push a the configuration tool into the small config hole and hold it pressed for about 8-10 seconds. Poly will reboot into the flashing green/blue hotpot mode.
Flashing single color - you need to push a the configuration tool into the small config hole and hold it pressed for about 8-10 seconds. Poly will reboot into the flashing green/blue hotpot mode. You will also have to then configure your home network or phone hotspot to get Poly connected to the internet first.
Now, on your phone, tablet or computer go into your WiFi settings and select the Poly-nnnnnnnn network - this is the hotspot Poly is cresting.
You will then see the poly setup screen, or you may have to open a browser to type http://www.poly.audio in the address bar to see the setup screen.
Now, at the very bottom of the screen you will see your Poly firmware version.