I am having lots and lots of problems with my Apple Iphone 3GS ... so i was thinking of restoring my Iphone?

But heres the thing that i need help form you guys . If i restore my iphone.. what happens to all my data in the phone.. would it all be deleted too ? thats the thing that i need to make sure off. .. thx guys.. and could u help me and advice me if its a good thing to restore my iphone.. and what IOS system would it restore to ? thx a bunch .. !
Answer:

You back it up first, just like when you reinstall your OS on a computer.

Irwin at Yahoo! Answers Visit the source

Was this solution helpful to you?

Other answers

Just make sure that the phone is not jailbroken and unlocked before doing anything. Otherwise, you'll be doing another stuff (mostly DYI so don't worry anyway), and that includes jailbreaking and unlocking the phone again. First thug is to back it up to make sure that contacts, email settings, and your notes and SMS As well as the calendar are "remembered" base on the settings prior to restore.

Related Q & A:

How can I get ringtones for my apple iphone 3g?Best solution by Yahoo! Answers
Will my iPhone 3GS work in Japan?Best solution by Quora
Is there a way to get the Iphone 3GS's compass system on the original iPhone?Best solution by Yahoo! Answers
Can I sync music from my PC to an iPhone 3GS previously synced with a Mac without loosing all other data?Best solution by Yahoo! Answers
IPhone 3GS or Blackberry? Why?Best solution by Yahoo! Answers

Just Added Q & A:

How many active mobile subscribers are there in China?Best solution by Quora
How to find the right vacation?Best solution by bookit.com
How To Make Your Own Primer?Best solution by thekrazycouponlady.com
How do you get the domain & range?Best solution by ChaCha
How do you open pop up blockers?Best solution by Yahoo! Answers

For every problem there is a solution! Proved by Solucija.

Got an issue and looking for advice?
Ask Solucija to search every corner of the Web for help.
Get workable solutions and helpful tips in a moment.

Just ask Solucija about an issue you face and immediately get a list of ready solutions, answers and tips from other Internet users. We always provide the most suitable and complete answer to your question at the top, along with a few good alternatives below.