Computer recognizes husband's iPhone 4 but not mine. Why?

My husband and I both have the same iPhone 4's, 2 years old. I back mine up through iTunes regularly and was trying to do so a few days ago when iTunes kept freezing up during the steps and I had to get out twice. When I went to get back in, the computer wouldn't recognize that my phone was hooked up and popped up 'USB Device Not Recognized". I Googled, and troubleshooted, and did a million things. Updated iTunes, restored my computer, uninstalled USB drives and reinstalled, restarted my phone, tried to update the drivers but it said they already were. So then I plugged my phone in on my husband's computer… Still didn't work. I plugged HIS phone in on his computer and it worked perfectly.So, I knew the USB cord was working fine. I then plugged his phone in on MY computer. And it worked! So my computer is not the issue… It's my phone? But how, why? What could've caused it and more importantly, how do I fix it? I plan on selling the phone when my iPhone 5 comes in the mail, but I need to first transfer everything from it to my new phone. Anyone know a fix for this?

What should I buy with $250 dollars?

I recently purchased the vocaloid len/rin act 2 software and it arived today but they got my order wrong and sent len/rin act 1 which was discontinued because of its low quality results, so I called the people and complained, they gave me a full refund and let me keep what they sent. I now have $250 dollars and I don't know what to buy I'm 15 and can't save my dad already bought me a car and I have a Iphone 4s. What can I buy.

How to save iphone contacts?

My uncle wants me to help him save a contact on an iphone, but it is chinese words and I don't know how to store in the contact on the iphone. Can somebody explain to me what I should do to save it?

Why does my iPhone 5 use so much data?

I got and iphone 5 3 days ago, the only time I use the Internet I'm on Wi-Fi, but this morning I got a text saying I've already used 95% of my data! Where is it going? I googled it and it seems like a lot of people are having this problem but they are with Verizon on AT&T, I'm with telus

Synced my iPhone 4 with itunes.and lost everything?

I got a new iphone 4, and I wanted to sync my itunes to my phone cause i had music on it. And when i synced it it deleted all my contacts, and converted whatever I had on my Itouch to my iphone so. I lost everything can someone help me.

What's a good video editing app for iPhone that's free?

I need one that I can either pause my recording at least mash videos together. I used to use iMovie but I got a new phone and I use a different apple account now and I don't have any money on it or money to put on it.

Dropped my iPhone in the toilet? - 1

I dropped my phone into the toilet, it was in there for less then ten seconds. I got it out and took the sim card out and tried to flick the water out of it. I left it in the airing cupboard, and the condensation had gone away. But now the phone won't illuminate, it has sound and is switched on, but I can't use the screen and the display isn't working. Siri is still working, but I can only hear the sounds and push the home button. Is there any chance it might work again, or should I just buy a new one? I'm a teenage girl, who really can't live without texting, and if it wasn't for my iPad, I would be dead! (obviously not actually dead, but still)