trying to unlock iphone 1.1.4

[psico]

hey so i bought an iphone recently and it came with the 2.0 firm ware i followed instructions to downgrade it and i am now at 1.1.4 so far i have used: Ziphone, iLiberty+ to unlock it and both applications run fine but when i insert my tmobile sim card it does not show any signal or anything the phone works fine but it does not show the phone is on any sort of network. please help i am stumped

 

[Jeremy]

First piece of advice is to never ever use Ziphone. It's been known to really screw up some iPhones. First mistake right there. Was there any reason you decided to downgrade the firmware?

 

[psico]

i downgraded because i heard thats the only way you can unlock the iphone from a pc and do you think that ziphone screwed up my phone?

 

[Jeremy]

I can't say for sure. I'm not sure by upgrading to 2.0 if that changes the in the radio. I myself have not downgraded from 2.0. Sorry I can't be of much help here. Maybe someone else can chime in for you.