iPhone IOS upgrade

[safdar]

Hi everyone,
I have upgrade my iPhone IOS 4 to 5 but i have lost all my contacts numbers. I am so worried about it. How to recover all those contacts safely?

 

[LoloBond]

Have you try restoring from an iPhone 4 backup?

 

[safdar]

Have you try restoring from an iPhone 4 backup?

No. I didn't. Is it safe for restoring all my contacts.? Have you tried it personally?

 

[LoloBond]

No. I didn't. Is it safe for restoring all my contacts.? Have you tried it personally?

Yes is safe.