Over the past week or so my iPhone 4S signal has started to "jam" occasionally. It will show that I still have signal, but the bars won't fluctuate and I can't use any data. Usually switching airplane mode off and back on doesn't help either. I have to completely power the device off and back on. Sometimes if I wait 5 minutes or so, it'll come back to life.
Has anyone else had a similar issue?
Has anyone else had a similar issue?