Hero Sim or Code Unlock

[fatbasket]

Just bought my girl a used Hero locked to tmobile.
I'm not sure whether to get a rebel sim or use an unlock code - any recommendations?.
Can the phone be rooted if it's still locked?
Thanks

 

[madnlooney]

Yeah I'm sure it can be rooted when locked but if think the price for an unlock code will save any messing with alternate sims

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