Hi, I've got iPhone 4S, ios 8.4.1 my problem: If I turn on the cellular data, than in any application on my iPhone I get the message "Could not activate cellular data network." (and I can't access the internet) BUT if I turn on the hotspot, the connected wifi device can then access the internet (thru my phone!) and in Settings I can then see amount of data transfered. Details: - I tried reseting network configuration, no success. - This device was restored from an older backup (of iPh2G) and it is possible, that in the time of creating the backup, there was an "Disable 3G/EDGE" profile activated on my (previous) phone. And here comes another strange thing - when I open "Profiles" in Settings, there appears to be none, but when I attemp to install a new APN setting it says "there cannt be more than one APN profile installed!" - This is my first attempt to connect to the internet with this phone. Any ideas please?