iPhone won't connect to 3G
I've been using an iPhone 5 for 2 years. Until 10 days ago it was working fine but now the phone does not connect to 3G. I checked all the relevant settings, confirmed that there are no problems with my service provider and restarted the device. It still wont connect to 3G. When I inserted my SIM in another iPhone, it connected to 3G. So nothing wrong with my SIM either. What should I do?
iPhone 5, iOS 8.3