Hi, recently my Iphone 4S having wifi problem. I have try to restore it and accidentally get everything clear off. I have also notice that my phone is not USB recognized by my laptop before my wifi gone. Is there any ways to restore my contact?

Hi,
My Iphone 4S having wifi problem. I also noticed that the USB is not longer recongnized by my laptop anymore.
I tried to upgrade my IOS6 into 7 hopefully it work...
Somehow, all data (contacts, sms, photo and etc) were gone after I did that.
Since my USB and wifi is not function, is there anyway to retrieve my lost contacts?
For Icloud, is the data retrieve via the phone sim? Phone mac ID? Apple ID? or everything?

Did you backup your iPhone 4S before to upgrade? If you did, you may recover your contacts from it.
iOS: How to back up and restore your content.
http://support.apple.com/kb/HT1766
Or you should use an iPhone recovery software to get your lost contacts back. Please follow the blog's tips to have a try.
For iCloud, it does not retrieve the phone sim data. It can only restore your backup data. And, if you want to find your Apple ID, you should read this:
Apple ID: How to find your Apple ID.
http://support.apple.com/kb/HT5625?viewlocale=en_US
Regards.

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