Network locked ?

[hyperseven]

I have an S3 which I assume will be locked to EE/T-mobile since its from them.

Question is will another operator that uses the EE network, like Sainsbury's, work without me forking out for an unlock code?

 

[Orcvader]

I believe there's a free way to unlock the S3: http://community.giffgaff.com/t5/Blog/Unlock-Samsung-Galaxy-S3-free/ba-p/7799058