I hate to want to do this but i live right on the edge of 3g (hspa+) and edge (2g). mt phone flips back and forth every ten seconds. i can just sit there and watch the top of the screen and it constantly flips. thus running the battery down and dropping calls. i have not rooted yet but am not scared to at all. i have two rooted devices already. but i really need to know how to lock it to edge. i have wifi everywhere anyway.