Mobile signal loss

[TonyJNelson]

My iPhone 5s lost its connection with mobile network for a number of days. I was told by both the network provider and an Apple Store that I would need to buy a new iPhone as the 5s was not supported by Apple. However after 4 days the connection came back after the phone had been switched off for some hours. Will the signal just drop out or is this a general problem?

 

[Cory Cooper]

Hello and welcome.

It could be several things: failing or loose SIM card, failing battery, etc.

-Which version of iOS?
-How much free space is available?
-Have you tried removing and reinserting the SIM card?
-Have you tried Settings > General > Reset > Reset Network Settings?

C