Will setting my iphone to its original settings get rid of my contacts?

If I set my iPhone back to factory settings, do I lose literally everything?

Yes!

As long as you have synced your contacts, apps, photos and calendars to iTunes or the cloud you won't lose anything since you can just resync everything after setting it back to the original settings.

How to back up your iPhone via iTunes:
1)Make sure under Settings, Mail, iCloud is unchecked of everything (contacts, calendars, etc)

Manual way of Backing Up:
1)Right click on your iPhone under the devices when Synced with iTunes
2) Select Back Up

Restoring From A Back Up:
1)Connect your iPhone to a computer
2) Right click on your iPhone under the devices tab
3) Select Restore from Back Up

  • What will happen if i restore my iPhone to original settings? Every time i hook my iphone up to itunes it says i need to restore it to original settting but will i lose my photos and other stuff? My bad it is factory settings
  • What settings will it change if I press reset all settings on my iPhone? Also, will this help speed up my iPhone because that's what I've heard. Because my iPhone has been so slow lately and taking like 3-5 minutes to send 1 text. If you know of any other ways that could help speed that up please also let me know that.
  • Restoring iphone 4s to original settings? I'm selling my phone to envirophone as its not in a good way and will be happy with anything for it. I'm currently wanting to restore the phone but it won't work as find my iphone is on still. The problem with this phone is that i don't get service or Wi-Fi and the top buttons broken. Yep its awful i know. I have deleted the account for find my iphone on the icloud website but it still doesn't recognize that its been taken off. any ideas?
  • How to revert iPhone 5 back to its original settings? Since the last back up my iPhone 5 now behaves like the iPhone 4 ie smaller screen saver. This is because I clicked back up to previous back up which was before I even owned an iPhone 5. How can I revert the iPhone 5 back to its previous settings?