xperia x10i sim reader

[furiousbird]

Please HELP!!
I have reset my Xperia X10i and now I am unable to use it on T-mobile. I previously used the phone on Tmobile. Currently running 2.1

This phone was a manufacture unlock version.

Thank you

 

[BingoRingo]

Just plug it in your PC and run PC Companion, there's an option to factory-reset it.