You ll get for not jailbroken . Factory unlock will sell for more.
You can get free ringtones for a non jailbroken iPhone 4, 16gb online at mobyware.net.
You don't need to be jailbroken now that the iPhone supports most carriers. The iPhone 4 is physically unable to switch from GSM to CDMA carriers anway.
A "cracked iPhone" could either be an iPhone with a cracked screen. Or a, as more commonly called, "jailbroken iPhone".
It needs to be Jailbroken then Unlocked. More info on my site.
You can't but if you break you iPhone screen like I did, when you go to repair it they don't fix the screen they replace your iPhone and it will be jailbroken.
You dont
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
The iPhone 4 can only support from iOS 4.0 to iOS 7.1.2. There is no way to get any higher iOS Firmware due to the older hardware that is built into the iPhone 4.
no
If you have the iphone 2g(the one with black and white back cover),then the answer is no..But if you have iphone 3 or 3gs,they will let you upgrade the phone to iphone 4 as long as you pay for the new iphone 4. Hope this Helps. And by the way,if the iPhone is Jailbroken,or unlocked,then they won't let you upgrade it. so make sure you restore your iphone before you trade for a iphone 4