Disable everything that does need the gps (like time zone for many) and disable notifications you don't need/want if you haven't already.
Then I would try rebooting it home + power for 10 seconds.
If that doesnt work then I'd reset all settings in the settings menu.
Finally if that doesn't work I would do a restore with a fresh copy of ios.
Then I would try rebooting it home + power for 10 seconds.
If that doesnt work then I'd reset all settings in the settings menu.
Finally if that doesn't work I would do a restore with a fresh copy of ios.