I got my Terrain months ago and using AT&T. Seller already given me the unlock code and I won't unlock it until now, I am going to change carrier, and forgot how to enter the unlock code. I sent message to seller but it seem he already forgot me and telling me all phone were unlocked before sent.
I am stuck with using my old phone, I appreciate if anyone can tell me how to.
Tried #7320*code#, #3210*code# or **00012*CODE# from Google but no help.
Thank you !!