Iphone 4s Searching for carrier
My iphone 4s was working perfect.. but from yesterday it is not detecting my netwrok but some time it even detect my network after searching for network for around 10 min it detect the network.. but still then i cant make or receive call or do sms.. seems like it didnot getting powerful signal. also some time it goes again on seraching signals. one more thing because of searching for singal and even if signal found my phone getting so hot.. but if i put it on airplain mode it become ok.. is it normal? i also restore and update my 4s to the latest firmware but no gain i also put another carrier sim but same issue. Any one can let me know if it is hardware issue or software?
iPhone 4S, iOS 7.0.3