Unlocking mobile phones

Does anyone know how to unlock mobile phones, in particular a Galaxy S3 Mini?
Just bought one on ebay that I thought was unlocked but isn’t.

same happened to me, go on gsm liberty.net it cost around a tenner

just found this video on the giff gaff site:

youtube.com/watch?v=x0GUQFAyP_Y

Has anyone tried this method and does anyone know if it works on the S3 Mini?

There’s surely a young Asian chap on every high street who can do this for you

A couple of years ago I tried one or two of these Youtube solutions to unlock a Galaxy S2 without success, in the end I used MobileUnlock.com, I think it cost me £20 but I had the instructions and unlock code the same day and it worked like a charm.

GOG47:
There’s surely a young Asian chap on every high street who can do this for you

Yeah there is, and im my town they want at least £20!
As it is, the phone arrived today and it appears to be unlocked already :laughing: The bloke I bought it from on eBay said it was locked to Orange, but I put my O2 sim in and it worked fine - result :stuck_out_tongue:
If anyone does use the method in the video, post how you get on cos I’m curious to know if it works, and also it may help some members on here.