Try these resets if you’re having issues with specific features on your phone. If the reset doesn’t resolve issues, you can take the larger step of resetting your phone.
Use this reset if:

You cannot choose individual connections to reset; they will all reset.
If you're having problems with connections, review this information first:
Then, if you’re still experiencing problems, try resetting all network settings:
This reset doesn't allow you to choose individual apps; all apps will be reset.
Before resetting all apps, if you're having trouble with one or two apps, reset the apps individually.
If you still experience the following issues, then reset all apps:
To reset all apps:
This resets your phone's mobile network connections. Use it if: