If you previously updated OTA, you must do a full backup then re-restore.
8 Ways to Fix it
How To Fix Mobile Hotspot Connected but No Internet on Android
How to Jailbreak iOS 8 and 8.x (Updated)
These are instructions on How to Jailbreak iOS 7, iOS 8 2015 your iPhone 4, iPhone 4s, iPhone 5, iPhone 5s, iPhone 5c, iPhone 6,
