Currently Being ModeratedSep 26, 2012 4:45 PM (in response to Sam_livo)
Yes, see here..
Currently Being ModeratedMar 29, 2013 11:49 PM (in response to Sam_livo)
I've found a very effective solution for my iphone5 running ios6.1.3.
go to settings>Carrier. Change it to manual and wait for a while till it loads the list of providers and select the network of the inserted SIM card. Now, turn the airplane mode on and then off. Leave the carrier selection to manual. You will now have better network reception. It perfectly worked for me.