Music downloading iTunes problem?

So every time I connect my iPhone 4s to my Macbook Pro to download music from my iTunes to my phone, it deletes songs randomly off my phone. And now i just end up buying songs from the iTunes store from my phone so I don't have to connect to my computer. BUT, my dad's iMac has some music that I don't want buy again. So I use Home sharing to get the songs from the iMac to my macbook. Then I don't know how to get them to my phone without connecting. Is airdrop usage? Please help and i don't want to use apps or converters that reduce the songs' quality.

Using a US Cellular Iphone 5C on Verizon?

I'm wondering if i'm able to use a us cellular 5c on verizon. I know right out of the box you can't.I'm asking if there's a way to unlock the phone to use it on verizon. Or if i can just put in the verizon sim card and get it to work somehow. I know a lot of people are going to say only verizon phones work on verizon, but I know a few people who use other carriers, I just haven't heard anything about Us cellular phones. And if anyone has done so, how did you do it.

Why won't the headphone jack on my iphone 5 work?

I've tried different headphones and none have worked.
I discovered that if i push the headphone in really hard and hold it there it will play music. Also i tried blowing into it and it made it play normally for a minute then the music started to fade.
If you know any ways to fix it or how much it could cost to fix it that would be great.

Will a case for iPhone 5 fit the iPhone 5c?

They had some cute cases at Dollar General for $5 - transparent with bling. I like the transparent ones for my 5c so you can still see the color. The cases say "iPhone 5" but I guess they just didn't have the 5c and 5s available when they were made. Will it fit the 5c?

My iPhone 4 stopped working? - 1

I have an iPhone 4 and I was on instagram and listening ton Pandora when my instagram stopped working and I tried to click the home button multiple times with no success. So I clicked the power butoon to turn off my screen. When I tried to turn it back on it wouldn't. I tried many times to get it to turn back on but it wouldn't, and my Pandora was still playing. And when I tried plugging it in it still vibrated. But just please someone help I don't know why it isn't working!

Does the Verizon iPhone 5 work with Tmobile?

My aunts contract will be ending her two year contract soon and upgrading to a new phone. I heard the iPhone 5 is compatible with GSM networks but then someone told me that the new apple update blocked it.