How much will it cost to fix my lock button on my iPhone 4?

My lock button is broken and I'm getting really sick of the assisted touch. I didn't get the insurance at Verizon. But I was wondering how much it would cost to get fixed? And how long it would take. Do I get a new phone or can I keep mine?

Wireless internet not working on mobile devices?

So we usually have my computer, phone, ipod & my family member's phones, ipods, computers etc connected to our wireless internet, joining automatically. However this morning i noticed that my ipod wasn't connected to the wireless, i then realised that my phone (samsung galaxy s3) wasn't either and my sister's iphone wasn't either anymore. Now when we try to connect with these types of devices it says unable to join "router name" and on my phone it says authentication failed. I tried 'forget network' and re-joining but i get the same errors. However the internet on the computer the router is joined to is working & the wireless on my laptop is working. The router is a belkin & no settings have been changed recently.
Any ideas?

IPhone 5 has white lines going vertically and is unresponsive?

My iPhone 5 is about 5 months old. I dropped it once, but the only problem was the cracked screen which was replaced. I turned it on and could only slide the bar about halfway. Soon after 6 white lines appeared vertically on the right side of the screen. Everything left of the lines is responsive, but on the other half the screen, nothing works. I can't turn off the phone because you must slide an arrow across the screen.

Added (1). The screen was replaced by a professional.

Added (2). The screen was replaced a few months ago, so I don't know why I would have a problem now.

If i download iOS 7 now, will it delete my text messages?

I found a youtube tutorial showing how to get iOS7.It looks successful and i wanted to try it out because i'm impatient: p I'm doing a lot of research before i go through with this. I heard a rumor that if you download iOS7 before it officially comes out, all the iphones will be deacivated on july 22nd is that true?

Parent giving iphones to their children?

Ok I'm getting sick of it. My neighbour has a little boy 3 years aprox. He always cry and get's whatever he's pointing at. Yesterday they came to visit us and the kid began to cry because he WANTED to play with his mother's iphone. The best part is that she agreed and gave the boy the iphone to make him stop. He would play with it for hours and the mother don't even bother to charge it for him. I'm 18 years old but when i was 3 i didn't even touch a phone. Not because they are/were expencive but because it's morally incorrect. I asked the mother why she gave the iphone to the kid (SHE DOES IT OFTEN) and she said that 1. He will stop 2. They get's smarter. SORRY BUT AT THIS TIME I WAS ABOUT TO SLAP HER. What is wrong with parents these days?

Is hacking iPhones possible?

Some one today who I was chatting with on whatsapp and viber, n whom I only met in a very long time, said that he could hack my phone. I'm using the latest version on iphone5. That person only knows my number. Nothing more than that. Is that possible? And if that was to be true, would I be able to notice any difference? Please let me know.

What happened to my remaining credit on my itunes gift card?

I entered a gift card in my itunes account worth $15 and had an amount of $3.72 left over when I tried to purchase an app for my iphone. But when I made the purchase, it made me login and then the remaining credit was gone. I tried logging out and in twice but nothing worked.

My texts won't go through on ios7?

My texts are only sending on text message and on imessage i get the red exclamation point next to the text saying it didn't send. I have an iphone 4s and just downloaded ios7