Why does my iTunes not work with my iPhone?

I have an iPhone 5 that I had to send in for repair, so I got a 4s from the shop to borrow.
I plug it in my iTunes, and I get this screen - image
I've clicked on everything, and it won't go away. If I go up in the top left corner and click that little thing, the ''Show info'' is also greyed out. Any idea why? My iTunes and the 4s IS up to date.

Will an iphone 4 or 4s work on tmobile?

I want to get a iphone but can't afford the 5, if I get a 4 or 4s which will should I get? Will everything work on them? Will they run 2g, 3g, or 4g. Is it worth getting?

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Which one is better? IPhone 5s or iPhone 5c?

I'm buying an iPhone and iphone 5s is coming out and so is iPhone 5c. What i've heard is that iphone 5c is cheaper and comes in gold? But iphone 5s comes with a finger sensor and better than iPhone 5c, which one should i buy?

How to revert my ios7 iphone back to ios6?

I have completely messed up my iphone 4,
i've had ios7 on it for ages now and everything was fine but last night it randomly turned off and when i turned it back on its come up with choose a Wi-Fi network, i can't get off this screen and get back to menu or do anything with it,
does anyone know what i should do from here as i need my phone as soon as possible
any real help is much appreciated, thank you

What could be the best tablet for me?

I'm looking for a tablet PC (I saw one that has Windows 8 and has an external keyboard) but I don't want pricey tablets. I'm also interested in just plain tablets if that's cheaper. I already have a laptop but it's too heavy for me to bring everyday to school, it gives me backaches. My main purpose is to study with it and also to watch some videos and have some very helpful apps. I like the iPad mini but I think it's too overpriced and I already have the iPhone. What do you think?

Can you tell me the price too?

IPhone 4S problem when restoring?

My iPhone was on iOS 5.1 and I restored it to 6.1.3 because I was going to get iOS 7 and when I restored it, it came to the activation screen and said I don't have a SIM card. Yes, I didn't have one at that time but it was bricked and I paid someone to get it fixed. Was it worth it and how do I fix this? Because I want to attempt again but I still don't have SIM card and I don't want my iPhone 4S to get bricked again. Can someone help me please? 10 points and 5 star rating to the best answer.