Why is my iphone4 permanatley silent?

My iphone 4, running on ios 6.0.1 will not turn off silent mode, when i try it the ringer volume doesn't appear, and the sound when i type or receive a text does not work. I have looked on settings on my sound and everythig is switched on so it should work but it doesn't. I can listen to music, and speak over the phone fine. Is my phone broke or is there a way to fix it?

What noise is my computer making? Hard drive or fan?

I will link you a short video of my iPhone aimed at my hard drive and the noise it makes when only firefox or nothing is open. This was just recorded 10 minutes ago btw. 8 minutes after Startup.

***AGAIN, WATCH THE LINK. AT LEAST 40 seconds.

So, you watched it, what is it? Sometimes the sound stops but it always come back. We gotten a new fan 2 months ago. 4 months ago I had gotten a new hard drive with a fan. AND a CPU.

So what do?

Added (1). For some reason the previous video was removed as copyright which is *** stupid?

So here:

My iphone home screen won't work?

My iphone 4s fell in water for no more then 5 seconds. There was no sound that came out of the phone but then i took a q-tip and stuck it down the audio jack and now the sound works fine… Just my home button won't work. Can someone please help me

Why does my Wi-Fi connect to my ipad and iphone but not my laptop?

My Wi-Fi on my laptop will say its connecting but then doesn't. It says my cord is broken or not plugged in but I've checked it and there's nothing wrong. My Wi-Fi connects fine to my iPad and iPhone. Not understanding why it won't connect to my laptop anymore.

Which is better iphone 4/4s or ipod touch 5th generation?

I don't know which to buy? I can either get a second-hand (but in good condition) iphone 4/4s or i can get a brand new ipod touch 5g. Which is better? Should i get an iphone because i have a rubbish nokia phone right now or should i get an ipod because of all the awesome features?

Iphone broken what can i do?

Was on Facebook reading statuses when my phone switched itself off. I switched it on and the wallpaper had changed it was showing a grey screen with the words IOS6 shown in the middle. The bar at the bottom that you slide to type in your password said configure in loads of different languages. And if you slide it and enter your password it brings up a screen telling me to connect my phone to iTunes. If i unplug it, it switches off and won't turn on at all. And if i plug it into my laptop it goes onto the apple sign and stays on it after about 2 minutes it turns itself off.what's up with it? And how do i fix it?

Forgot Nokia 5530 lock code?

So i had my sim card cut for the iphone 4s then i decided to have my nokia 5530 my extra phone but i forgot i set it on 'lock if sim card changed'

I forgot my lock code and i need to unlock my phone! The only sim card that can access it is my old sim card which is already cut for the 4s and can't fit in the 5530 anymore

The pressing of the green, red, camera buttons don't work because the 5530 is full touch screen