Unlock Phones from AT&T

So in prepa­ra­tion to going to Europe, I wanted to be able to have a cell­phone (mobile) handy in case of an emer­gency. I wanted to just use the iPhone 3G but I have updated to iPhone OS 2.2.1 with a base­band of 2.30.03, which there is no (soft­ware) unlock for. Luck­ily, I still have kept my Sam­sung Black­jack (1).

Here’s what I found out when get­ting my Black­jack unlocked:

  • Call 611 (Cus­tomer Ser­vice), and not the local AT&T store.
  • Unlock­ing is “free” (accord­ing to the CSR who helped me).
  • Give your IMEI num­ber to the CSR to receive your phone’s unlock code.
  • To get your phone’s IMEI num­ber, press *#06#
  • To pro­ceed with the unlock process: 
    • Take out the SIM card if there are any first.
    • You have to do the fol­low­ing key­strokes: #7465625*638*unlock_code# (unlock_code is your own of course).
    • Your phone’s dis­play will then have some type of mes­sage that it has dis­abled a lock of some sort.

I hope that helps.

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