Simple Mobile pre-paid Samsung Galaxy On5 doesn't with Tmo sim




    So I just bought a pre-paid Samsung Galaxy on5 that's Simple Mobile branded. I asked a Tmo rep beforehand whether or not that would work on Tmo post-paid plan and they said yes it would. But when I insert the Tmo sim card it says that the phone is network locked. (And i saw on another forum that someone was interchangeably using their Simple Mobile branded phone on simple mobile & tmo sims so i went ahead and bought the pre-paid phone.)


    Does this mean that Simple Mobile branded phones won't work with Tmo network (even though they use the Tmo network) unless you get it unlocked from simple mobile? (That requires 12 months of pre-paid service).

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