Hello everyone! I just recently purchased a used factory unlocked iphone 3gs to use on straight talk. I have had my straight talk sim for a while now (and it works), and expected no problems with simply putting it in the iphone 3gs. I put the sim in and it said "searching" then "no service". I have tried rebooting, and choosing a custom apn from the unlockit.co.nz website from the phone via wifi and niether worked. If anyone has a solution for this that would be amazing. Thanks for any help!