My iPhone 3GS won't restore?

Okay I bought and old iPhone 3GS and at first it wouldn't do anything because it hadn't been used for about 2 years, nothing would work, no Wi-Fi, the apps immediately crashed, and the music wouldn't play.
So I thought an update and a restore would fix it, when I tried it gave me the "unknown error(-1)." And it is now stuck in recovery mode. I tried puttin it in DFU mode but I don't think it worked.
Anyone know how to fix it?

And i don't know if this matters but its a TMobile phone.

Worried about my history on my Mac?

I had a MacBook (old version) and used to visit some inappropriate websites to watch some videos. I may have also used my iPhone to take a few pictures to send to my significant other. As far as I know right now, I've deleted all my safari history and images on iPhone. I will be getting a new MacBook and new iPhone shortly. My dad will be assisting me with making sure my music, photos, and school files are on the new devices. What I'm worried about is him finding out that I've been doing those inappropriate things. How can I make sure he doesn't find out about the videos I've seen and pictures I've taken? More specifically, does my hard drive, icloud, or SIM card have anything to do with it?

Added (1). Also, is there anything I should be concerned about regarding backing everything up?

Downloaded iOS beta, and iphone won't plug into radio USB?

Before, I used to be able to plug my Iphone 4 into the USB slot in my car radio and it would play my music through the car speakers. I recently updated my phone to iOS 7 beta. Now, whenever I plug it in I get a buzzing noise, or nothing at all and the radio sometimes says "no file" instead of giving a song name or saing "iphone- read." (even when it says Iphone-read it sometimes just buzzes."

Before this update, I had absolutely NO problems with this, so i'm convinced that they're related.

Why doesn't my iphone 5 have 4g?

I brought my iphone about 3 weeks ago and I got 3G working because I thought that was what it just had, but I was watching the tv and it said that the iphone5 has 4g, so why does mine only say 3G in the top status bar

How to get my iPhone's pictures back?

Yesterday I let my son back up my iPhone 4S, I had a problem with the volume of my phone. Then I took it to the apple store and they restored back to factory settings. When I got home I let my son restore the back up. Everything came except my pictures. How do I get them back?

How to Transfer music to your iPhone without iTunes?

So my mum asked to transfer some songs she has on a usb to her iPhone 5. How do I put those songs into her phone without using itunes because i don't want to put her songs onto mine? Is there some sort of program I can use? Also I'm using a mac.

IPHONE ASSISTIVE TOUCH

Ok, So on vine I saw people doing the vine with no hands, so I followed these instructions to try it http://www.thecleverest.com/how-to-vine-with-no-hands/, and when I finished the vine, it wouldn't let me press the green check mark to continue.so, I locked my iphone screen. When I unlocked it again, it wouldn't let me slide to unlock and it wouldn't let me do anything.

Why do networks lock their iphones to their network only?

Okay, I'm a little pissed off. I bought my iphone used, and it is locked to at&t, and my previous phone uses Verison. I took the sim card out of my old phone and put it into my iphone, and it says my iphone is locked. That just really pissed me off, cause I paid for the phone, and when I went online to find out how to unlock it, they have to charge me. I mean WTF its my phone, I paid for it, and there for I should be able to do whatever I want with it. Please no mean answers.

Added (1). Haha I got it a few months old, from my cousin who lives in Virginia, and she sent it to me via mail, and I sent her something of the same value LOL