Instructions for firmware update:
1) switch Wifi , GPS and Bluetooth ON you android device
2) Select firmware update in the Menu
3) power on your Volt efoil with both receiver and remote connected (check signal bar)
4) Long press minus button on your remote to access menu
5) press Minus until you reach "firmware update" page
6) press middle O button and wait for the instructions on the remote display.
7) press update on the Phone.
note: it is recommended to keep phone, receiver and remote about 10cm away from each other for fast and successful update.