If i update my Iphone on my Settings App will it Erase everything?

I want to update my Iphone 4 to the latest software, and i see that you can update it on the "Settings" App, If i update it from that app, will it erase everything i have? (photos, contacts, Etc)

No it will not erase anything

Nope it will only update your software not remove any of your personal stuff

Nope, everything will be as normal

It will not but if your jailbroken you have to update with itunes back up restore update and restore from back up and you won't lose anything but thats if your jailbroken, if your not then you can update from the settings app.

  • Will restoring my Iphone to facorty settings erase my data? I have upgraded my iphone 4s to the new iOS, and then a few days later, tried connecting my device to my PC ( i have the new itunes).It, however, tells me that it can't connect to my iphone and that i should go to 'Preference' and select to 'restore to factory' settings. Will this erase my data and 'degrade' my phone to the previous iOS?
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  • What will erase and sync erase on my iphone? I wanted to connect my iphone to a new computer but it says erase and sync, what will it erase? All of the contents or just music?