IOS 7 Problem on my iPhone 4S?

I became impatient and downloaded iOS 7 on my iPhone with the help of a very tech-savvy friend, who somehow faked a developer account by paying something like $7.99 online. This was about a month ago, and everything has been working flawlessly so far. Just today, out of no where, my iPhone made a weird restart and said that I had to activate my iphone by signing into my Apple ID. However after many attempts to sign in on both my phone and connected to itunes, I was unable to continue after I typed it in.So, I restored my phone using iCloud hoping to just go back to iOS 6 but even after I restarted it, its giving me the exact same problems. Is there anything I can do? Perhaps a software that could force install iOS 6?

My iPhone 4s wants me to activate it? I've had it for 7 months?

So my 7 month old iPhone decides to tell me that i need to activate it, and everytime i try using a connection, it says that i have to try something else, it also won't let me go to the home screen so everytime I press home, on the bottom it says Emergency call, Start over, and Wi-Fi settings, and cancel. I plugged it into my laptop and connected it to itunes and it told me that it could not be backed up or something? And now on the screen it says activation error, and won't let me go back to anything else, and it tells me that i'm not registered as a part of the iPhone developer program i checked the website and it didn't say anything about activing my phone? I don't know i'm really confused… Also about 2 or 3 weeks ago i downloaded the new iOS 7, and i'm thinking thats somthing to do with it since its not publicly out yet. Please help as soon as possible, i need it in about 4 or so hours from now, thanks!

How to put iPhone photos on to an SD card (from a camera)?

I'm trying to print off some pictures from my iPhone that I took of my boyfriend and I so I can hang them up on my picture-boards in my room but I can't get my iPhone pictures to transfer on to the SD card.
I have the pictures on my laptop and I have the card inserted into my laptop, but there are a few folders within the card. I had my sisters boyfriend help me and he only was able to get the pictures that were taken on the camera to transfer to the SD card.
I wanted to go print them off tomorrow, but unless I can get this answered over night, that isn't going to happen.

How to download music onto my IPHONE 5 from the computer?

I'm trying to figure out how to download music onto my IPHONE 5. Like what I do I do when I hook my phone up to the computer because nothing is showing up where I can sync it. Or do I have to do something on my Iphone to be able to sync anything?

What is the best and cheapest brand to buy a apple iphone 4?

I'm getting a iphone 4 but my parents are trying to find out what the best and cheapest brand. My family wants to get a 3 or 4 family plan. My dad want to get me a contract plan but my mo doesn't. I need help! What brand is better? Cricket? T-mobel /sprint? ETC.