To lock the screen by double on the G3 you need to double tap on an empty portion of the screen. Did you film your home screen with apps or widgets?You can also double tap the notification bar at the top of the screen to lock.
Pretty sure Fido goofed on the specs of the phone. It also states 1.2MP front camera when it's actually 2.1MP.See the correct specs for the G3 on the Rogers website, which is the same one Fido is offering:http://www.rogers.com/web/link/wirelessBuyFlo...