How to restore my iphone to last backup?

While trying to fix a glitch in my phone I tapped the icloud contacts and it turned off, then I realized more than half my contacts disappeared.
I slid the contacts bar back to green but it remained the same way.
I went to check itunes back ups and it showed only one I had done just now in a failed attempt to restore from previous backup.
I'm now on my "icloud storage and backup" and it states that my last back up was on 6/23/13. If I can restore to this time I will more than grateful. Please share your knowledge on how to go about this process.

Anyone regret from changing iphone 4 to samsung note 2?

I had been using Iphone 4 for like 1 year plus and so I changed to samsung note 2 because I feel that android phone can customize etc… But after like 2 weeks of using… I regretted… Although the difference between iphone 4 and note 2 is big but I miss some of iphone's functions and now ios 7 is out >< I miss the iphone's Imessage, emoticons(not on on whatsapp), itunes syncing and I also felt that the note 2 used up 4g data very fast but well the note 2 is awesome too… Does anyone feel the same?

Is there anyway to get rid of iCloud downloads on iphone?

Everytime i sync my phone with iTunes it comes up with all the really crappy music from iTunes account on my music and it gives me the option to download it off of iCloud, is there anyway to get rid of this? It's not so much a problem, just more of an inconvenience!

Added (1). Any idea how I'll do that?

Using my iphone internationally?

I purchased my Iphone 5 from virgin mobile and it is unlocked. My first question is, will it work in USA as I'm going there for a holiday in december? If not, what will I have to do to get it to work? Do I have to but a new sim once i get there?

Is the iOS 7.0 update making my internet slow or is it the server?

Ever since my sister and cousin updated their iPhones to the iOS 7.0 update our home internet has slowed down. Video's used to load reasonably good and now we can't even watch the intro to a video. And when we open a new tab the longest I've had to wait for it to fully load was at least 5 minutes. This has been going on for 4 or 5 days. This has happened in the past but when I tried to fix it like I did back then it didn't make any changes. I use Firefox and have tried using Google Chrome and Internet Explorer but the problem still insists. I even tried using my phone but nothing will load.

For anyone who would like to know I have a Black Netgear Optus Wireless modem.

It would really help me out because I can't use my school laptop at home, which requires internet to login.

How to turn off 3g on iphone5?

I have an iphone 5. And i'm at the airport going to vegas but i do not want to get charged while i'm over there i just want to use Wi-Fi. So how to i turn off 3g so i will not get charged?

IPhone 5 SIM Card Error (iOS 7.0.0)?

Hi, I recently updated my iPhone from an iOS 7 Beta to the actual firmware which was released. I struggled with the updating, getting error after error on iTunes until it finally let me update. Now on the setup screen for iOS 7, I get as far as sim card verification where I encounter this error:

"SIM Not Valid; The SIM car that you currently have installed in this iPhone is from a carrier that is not supported under the activation policy that is currently assigned by the activation server. This is not a hardware issue with the iPhone. Please insert another SIM card from a supported carrier or request that this iPhone be unlocked by your carrier. Please contact Apple for more information."

Now, this sounds like a routine "unlock your phone" answer. But the problem is, the SIM card was working perfect up until I updated to iOS 7. Right now I just want to be able to use my phone, even if it means downgrading to iOS 6.x.x. Is there anyway I can possibly bypass this? Can it be unlocked from its current state or do I have to downgrade? Any suggestions?

Model: A1429

Kik: OmgItz_JP for additional information!

Added (1). Okay, so what I really wanted to know in the case that the phone definitely needs to be unlocked, can it be unlock from its current state? What will I have to take to get through this?