1
vote
0answers
16 views

Will my phone will get locked after upgrading to Jelly Bean? [duplicate]

My phone is Docomo Samsung Galaxy S2. The default network is Docomo but I unlocked it by giving it to a shop I want to upgrade it to Jelly Bean will it be lock again? How can I upgrade it ?
3
votes
4answers
13k views

How can I remove the SIM lock from a Samsung Galaxy S?

I bought one from bell Canada, and I can't put in a SIM card from any other service provider. Does anyone know how to unlock this phone?