How do download youtube videos to my iphone?

I'm trying to download a youtube video to my camera roll. I have an iphone 4s. I have tried a few apps but it says there's copyright issues. I see people posting music videos and other youtube videos to instagram all the time. Is there another way download the videos to my ohone or upload them to instagram?

How to get more storage on my iPhone? - 1

I deleted a bunch of photos/videos, and I barely have any apps or music on my phone but it is still telling me my storage is almost full. Any tips on how to fix this?

How to get ringtones on iPhone? - 1

I just got my new iPhone 5 I want my favorite song as my ringtone. My girlfriend has the white iPhone she just goes into her music and select a song as a ringtone I tried that it wouldn't let me do it. I already have the song downloaded I don't want to have to download it again for a ringtone. The song I want is Cruise by Florida Georgia Line. Will I have to download it again for a ringtone or is there a different way to do it?

Why is Safari on my iPhone goes into error?

I'm was on Safari earlier today and I was searching something and I founded what I was looking for and when it opening, I notice that it was slow and when it open. It said "Error". I need help on this and I already clear my cookies and data.

What is a good website to buy a used/buy an iphone 5?

I want to buy an iphone 5 but I don't know where to buy one. I don't want to get ripped off. I would buy a new iphone 5 from apple but they discontinue it. I'm perfectly fine buying a used one in a good condition. I bugged is $450 I willing to go over it if necessary.

Why isn't my iphone 4s playing sound?

It just started happening within the last 2 hours where I have my phone set to not silent and I try to adjust the volume and nothing pops up. It won't play any videos or music and even when I go to play music is doesn't give me the option to adjust the volume like there's no volume. Can anyone help me out?

On the iphone 4, how to get back the circle square thing?

On my iphone 4, when I purchased it, came with the background and an additional circle inside of a square symbol. I had never used it and I had disabled it in the settings. Now since dropping my phone on concrete, The power button does not work and to get it to lock the screen, I either have to shut my phone down or wait a few minutes for the phone to lock itself. I want to get the circle square symbol back on my phone but I can't seem to find it in the settings. Does anyone know how to enable it and guide me through it?

Why does my iphone 4s keep blinking?

Since i updated my iphone 4s to the latest IOS update, my phone has been randomly taking screenshots, and when i'm doing something, it turns off and when i click the home screen and it takes random screenshots and when i swipe to go back to what i'm doing, it keeps turning off and I'm getting frustrated. I've already did the DFU mode, and i already restarted it, i even had to accept the fact that i'm going to lose my recent things because i haven't backed it up in a month. I'm very annoyed and the fact that it keeps blinking at the lock screen, and I'm going on vacation tomorrow after school and if my phone keeps doing this, i'm not able to call my mom while i'm there. What can I do?

My volume is jacked up iphone5s?

When I try to push the volume buttons in the side if the phone it doesn't show it going up or down, and when I bring he bottom tab up nothing about volume shows. And when I click on music and now playing it doesn't let me change the volume from zero.