So basically, my iPhone is unable to connect to my mobile carrier. I've tried troubleshooting and have done all the steps. Just now I backed up and factory reset my iPhone, as soon as I turned it on again IT WORKED and I could connect to the my carrier's network. But then when I restored all my data to my iPhone the signal was lost and now it's either stuck on 'Searching...' or 'No Service'. Anyone know any solutions?