Device: Sprint iPhone 6 Plus 64GB OS: iOS 8.3 Carrier Settings: All updated with ##UPDATE# Issue 1: When typing a message vertically and then rotating horizontally, occasionally the messages app doesn't properly rotate. I need to swipe-close the app and re-open with the phone horizontal, otherwise the issue repeats until I reboot the phone. Note: This seems even more pronounced after mirroring to an TV latest gen with latest software. Issue 2: WiFi calling on Sprint simply does not activate, no matter the quality of the bandwidth, even with the latest carrier settings forced with ##UPDATE# from the phone app. Not sure how to continue! Screen shot of the messaging thing below -- anyone know how to fix that, or submit a report to Apple?