Can i use T-Mobile phone on Straight Talk?

[Richard]

Can I buy a used T Mobile phone and use it with Straight Talk?

 

[EnsignRoe]

Yes but you have to unlock it.

 

[Unregistered]

Before put Straight Talk sim card,Make sure your phone is unlocked.If it's locked means and if you get any sim error message,you will need to unlock your phone.For unlocking you can approach your service provider or else try to buy an unlocking service from any one of the online unlocking service provider like SimpleUnlocking.com