According to Apple, jailbreaking your iPhone could cause it to not work properly. They say the phone could become unstable and stop working. Of course if you do it wrong, you run the risk of destroying the phone. Of course Apple doesn't want you to jailbreak the iPhone, but still, you take your chances.
If you jailbreak your iPhone and aren't happy with the results, you can plug it in to iTunes and restore the original settings. This will return the iPhone to its non-jailbroken state.
Perhaps the biggest issue is if you do jailbreak and then unlock your iPhone, it will most likely void the warranty. If that happens, they will not pay for any future repairs for the phone. You can get a little more information on this topic here.
By jailbreaking it.
Jailbreaking will void your iPhone's warranty.
Jailbreaking is free.
You cant without jailbreaking it.
Yes and it works pretty well for me
yes it is absolutely legal
Jailbreaking a phone is partially legal and partially illegal. I have a post regarding this http://www.techlucid.com/2013/11/is-jailbreaking-illegal-or-not/
It is okay to jailbreak your iPhone 3g. The only downside to jailbreaking your iPhone is that you will loose your Apple warranty.
It is not illegal but will invalidate any warranty.
No. Sorry.
Yes by jailbreaking your apple device
Jailbreak iPhone - What Does It Mean? cellphones.about.com/od/glossary/f/jailbreak_faq.htmQuestion: What Does It Mean to Jailbreak an iPhone? ... you can do even more than that: Jailbreaking even lets you to unlock your phone so you can use it with ... iOS jailbreaking - Wikipedia, the free encyclopedia en.wikipedia.org/wiki/IOS_jailbreakingSuch devices include the iPhone, iPod touch, iPad, and 2nd Gen Apple TV. .... the first iPhone unlock, released a jailbreaking tool for the iPhone 3GS on iOS ....