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HI to all, I am using Iphone 4 with latest OS 5.1.1(9B208), i am facing signal lost problem for atleast 10 times a day in my STC network, my calls during that time will get disconnected, or call failure will appear. but i tried to use same network with another sim in basic mobile, it shows full strength all the times and call are good.
I tried to wsitch off data usage, but i wont help me.
Kindly help how to grt rid of Signal loss problem in Apple I phone.
If it works fine with a different SIM from the same provider, then the issue is with the SIM not the device.
HI thanks for your response, I tried to change sim in same network and even with another network. Signal strength is fine in same network which I use in iPhone with another phone. I don't know what is the problem with my iPhone.. Do any one faced such probs and got some solution, plZ let me know
Hi, I also updated to 5.1.1 when it came available and now all my calls have bad connections. I can hear the people okay but they can barely hear me because it cuts out too much.
Before the update I rarely had a problem like this.

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