You need to be plugged into iTunes to update the latest software and it isn't always recommended for those that are Jailbroken.
You ll get for not jailbroken . Factory unlock will sell for more.
You dont
yes
A Jailbroken Iphone is a Iphone that has been revealed with a code to access the firewall to tons of Iphone background images. Jailbrakeing your Iphone has some of these consuquenences; 1. Owners say that if you Jailbrake a phone, you can become tracked down easier from your moblie carrier than a Ipod Touch. 2. You can't access Itunes 3. People say that you wont get caught, but have to pay a fine. 4. Jailbrakeing your Iphone can become reseting files from mirco sd cards or on your Iphone.
yes .. as in u mean can u sync your music from your itunes library to your jailbroken iphone .. yes you can
You can get free ringtones for a non jailbroken iPhone 4, 16gb online at mobyware.net.
No, you can even unlock the iPhone when Jailbroken.
Yes but your iphone has to be jailbroken and have Cydia.
Yes you can.If you have an jailbroken iphone you can get it for free
Im not sure what you mean by installer but I assume your talking about apps. If you want to install apps you can download them from the app store and it will automatically install.Or you can download on itunes and sync to iPhone. If you have jailbroken you need to install 'installous' on cydia by adding hackulous as a source . Search how to install installous. For a normal iPhone that hasn't been jailbroken you don't need a extra program. But for jailbroken you need installous. I work for apple California i would know Also don't jailbreak it messes up your iPhone slows it down and voids your warranty.
no