I spent the better part of the last 3 hours scouring the web for a way to unlock the Seimens A56 model cell phone I got for free from a friend.
Turns out, the only viable solution is to buy an unlocked phone off ebay or craigslist.org (or one that was previously on the same network as my current provider – ie: Cingular or AT&T, etc.), or simply sign up a new plan and get a free phone (but then that would be giving in to these greedy bastard cell phone companies, who lock the cell phones in the first place to keep us from switching phones easily, without buying a new plan).
Well, all is not totally lost, although for this model it seems to be a waste of time, trust me, I searched everywhere. I found two plausable solutions for unlocking the Seimens A56:
1) buy a data cable (worth more than the free phone I got), and “flash/upgrade” to the C56 using software from seimens.com, then use some “remote unlocking” service. (see below for another thread about using free software).
2) buy a used phone that was previously used with the same provider you’re on now, or find a used phone that is “unlocked”, which can be used anywhere in the world, with any provider (** best solution **)
Other models:
3) If you’re lucky enough to have a cell phone that supports “remote unlocking”, you can try this site: http://www.westerna.org (see bottom left of site for manufacturers) or http://key.westerna.org (click on phone manufacturer). These guys cost money too, I think it’s $12. They will email you the unlock code. They seem to be the most legitimate, and can unlock the widest range of models.
If you have a Nokia phone, you should be able to unlock it free, online. Kodos to Nokia for not being “cellular nazis” with their customers: http://unlock.nokiafree.org/
To find out if your cell phone is currently locked (at least with the seimens A56), you can take out the sim card, and then type: *#0606#, you’ll get some crap, then hit the “Info” button, on mine the 2nd line says: “multiple lock”, the rest say “Unbarred”. This means that Cingular (the previous provider used with the phone), has locked the phone, so you can’t use it with any other provider, except – you guessed it! – Cingular (not even AT&T, even though they merged recently).
For the online “remote unlocking”, you have to get the IMEI phone identifier number, which can be found by re-inserting the sim card, and typing *#06#. You can also press the “Info” button and see some more info about your phone.
Some cool phone phreaking forums I came across are:
http://www.howardforums.com (Excellent source)
http://forum.westerna.org/index.php (Ok, kind of dead at least in helpful responses)
http://forum.gsmhosting.com/vbb/archive/index.php/t-119476 (the most detailed thread I could find about unlocking the Seimens A56 model, with a data cable and free software).