Tmobile cell on At&t network

[scoot0073]

My sister has at&t n she broke her cell can she use a Tmobile cell ?

sent from EVO 4g runnin Synergy RSL1 Rom

 

[lmc05]

Re: Tmobile cell on At&t network

Only if it has been unlocked. With smartphones she would most likely see 2g speeds because the frequencies for the two networks are different.