When prompted, enter your passcode Scroll all the way down, and turn on Erase Data. Reset Location & Privacy: Tapping this option makes any app that has ever asked for access to your GPS location, address book, microphone, or other private data, request those permissions again the next time they require it. How to turn on Erase Data On your iPhone, launch Settings.Reset Home Screen Layout: Use this option to undo all the folders and app arrangements you created and return your iPhone's layout to its default state.Consider resetting your iPhone's keyboard history if you're getting inaccurate suggestions. Reset Keyboard Dictionary: This option removes all the custom words and spellings you added to your phone's dictionary and spellchecker.It removes any Wi-Fi password you entered, so any hotspot or router your phone automatically connects to will no longer recognize your phone. Reset Network Settings: This option returns your wireless network settings to the factory default states.This option erases all your preferences and removes every song, movie, picture, app, or file on the device. Erase All Content and Settings: To completely delete your iPhone data, this is the option to choose.It does not erase any of your data or apps. Reset All Settings: This option resets all your preference settings, returning them to default.

How to erase data on iphone