I bought a ST Galaxy S III, intending to put my H2O sim in it and staying with H2O, if I put in my sim card will it work?

[gramfinn]

I bought a ST Galaxy S III, intending to put my H2O sim in it and staying with H2O

The box says it has to be activated at the register (WalMart). Can I just put my sim card in and get service from H2O?

 

[Golfdriver97]

Re: I bought a ST Galaxy S III, intending to put my H2O sim in it and staying with H2O

Welcome to the forums. You might want to call Straight Talk and ask them if the phone can be unlocked.