Iphone 3gs can not catch any wireless after unlocking !

[original2vz]

I did unlock my iphone 3gs 32 GB . I think I did everything right, no problems. But after that it doesn't connect to any wireless. It is showing NO SERVICE on the left upper corner . May be there is a chance to fix it somehow. Please help . I need an advice . Thanks

 

[PsstGreek]

I did unlock my iphone 3gs 32 GB . I think I did everything right, no problems. But after that it doesn't connect to any wireless. It is showing NO SERVICE on the left upper corner . May be there is a chance to fix it somehow. Please help . I need an advice . Thanks

Reset the network settings.

 

[original2vz]

I did reset network settings. When I put T_mobile sim card in it shows prossesing and then NO SERVICE again !