I am preparing to sell my Moto G. It is fully paid for. I want to unlock it first. I prefer to buy a code online, rather than spend $35 at Koodo. However, all the instructions I am finding say that in order to unlock I need to power up the phone with a sim from a different carrier. I do not have one. Is there any way to access the Moto G unlock screen without inserting another sim? Presumably when Koodo unlocks one of their own phones they are not using another carrier's sim. So there must be a code one can input to get an unlock screen, no?