M Martin New member Apr 8, 2011 #1 i just bought a unlocked side kick slide from best buy. when i put my Sim card in it doesn't says enter a Sim code it says i have to use a t mobile service why is that? how can i activate my at&t Sim card to this side?
i just bought a unlocked side kick slide from best buy. when i put my Sim card in it doesn't says enter a Sim code it says i have to use a t mobile service why is that? how can i activate my at&t Sim card to this side?
