I just updated my iPhone 5 and iPad 3 to iOS 9. Everything is just fine for now except for one thing: My iPhone 5 just refuses to show me any signal strength, carrier name or on which radio I am on (LTE, 3G, E). I am on T-Mobile Germany and mobile internet works, I can make and receive calls.
The even more strange part: My iPad 3, which is on o2 Germany, does show all these information.
Luckily I am not dependent on this iPhone since I still have my daily driver, the iPhone 6 on 8.1.2, but nevertheless I would still want to know what could be the reason and if it's a bug or a feature.
Edit: FYI: I made a fresh install and restored it. Also, I rebooted it several times and also swaped SIM cards but still no avail ...
The even more strange part: My iPad 3, which is on o2 Germany, does show all these information.
Luckily I am not dependent on this iPhone since I still have my daily driver, the iPhone 6 on 8.1.2, but nevertheless I would still want to know what could be the reason and if it's a bug or a feature.
Edit: FYI: I made a fresh install and restored it. Also, I rebooted it several times and also swaped SIM cards but still no avail ...