Showing single bar in network area

[mastansaheb]

Hi all,

My iphone 3gs display one bar signal in the network place. I am unable to do any out going calls and incoming calls. It happend after making below changes.
1. Opened cydia and installed Simanager.
2. Opened simanager then selected copied phone to sim option.
Afterwards i got this problem. I had tried with restart mobile and with another sim also but couldnt help.
Please help me.

Regards,
Mastan

 

[taz323]

Sound like a carrier issue.