Why won't iOS 7 download on my iPhone 4?

So I went into my settings, and I tried downloading iOS 7. I waited an hour, and then it said that "Software update is not available now. Please try again later." Why is this? How can I fix this?

How to exit the connect to the itunes in my iphone 4s?

I was going to upgrade my iphone from ios 5.0.1 to the new ios 7, but it got stuck in the connect to itunes screen, when i went over to itunes, it says that my iphone is in recovery mode and i must restore to continue updating… The only problem is that iu have tons of photos that i didn't copyed to my computer… I' ve already tried a bunch of programs to get out of the recovery mode, but none of them seems to work.
can someone please help me!
(sorry for my bad english)

How to update your iphone without deleting apps to make space?

Well i want to Update my iPhone 4 to iOS 7.0 but it says "This update can't be installed because it requires at least 3.7 GB of storage… " i almost deleted everything on my phone & it still hasn't gone through. I want to jailbreak it but i don't think that will work?

Ios 7 not showing up? Iphone 5?

I'm trying to upgrade to IOS 7 but its not coming up on my Iphone 5. I went to software updates but the update is not there. What should i do? Can i get it on itunes?

I tried to download IOS 7 but it said error

I'm not sure what's happening, I've tried to download IOS 7 about 5 times on to my iPhone but after I press 'download and install' it just says error! What's the problem?

Why won't my iphone update to iOS7?

I have I a iPhone 4S and I have tried updating it to the iOS7 and it then finished and then I had a pop up saying the update is not available at this time. Try again. I have tried again and it still hasn't updated?

Texting with an iphone through Wi-Fi?

I have an iphone 4, but with no data or credit. I can text other iphones through the Wi-Fi with imessage, but now some won't send. Do they have to be on Wi-Fi to receive the text? Or if they're on 3G will i still be able to text through Wi-Fi?

Ios7 not working for iphone 4s?

I just downloaded ios 7 for my iphone 4s but when i click install it says ios 7 is unnavailable at the moment please try again later i tried like so many times what am i doing wrong