You may have heard about the term "jailbreak iPhone". Not familiar with it? No worry! This article is specially designed for green hands who don't have much ideas about jailbreak and want to jailbreak Apple devices, such as new iPhone (incluidng iPhone SE/6s/6s Plus/6/5S/5C), iPhone 4S, iPhone 4, and iPhone 3GS.
Here jailbreak means iOS jailbreaking for Apple devices, which is the process of removing the limitations imposed on them by carriers, such as Apple, AT&T or Verizon. This means Jailbreak is a form of privilege escalation. A jailbroken iPhone running iOS can still use the App Store, iTunes and other normal functions, but you may have voided your warranty, so you can't rely on AT&T, Verizon, or Apple to fix any problems that you encounter in the after days.
There are many benefits if you jailbreak iPhone on iOS10/ 9.3/9.2/9/8/7, because it permits root access to the iOS operating system, which allows you to download additional applications, extensions, and themes that are unavailable through the official Apple App Store. There may other reasons for jailbreak iPhone devices, such as you can use the third party apps, handset on multiple carriers, early exploit fixes, etc.
Although you can enjoy much fun if you experience iPhone jailbreak --- get a ton of third-party apps that are really fun, useful, and cool --- there are many tips and notes you should pay attention to before you jailbreak your iPhone.
There are many jailbreaking tools in the Internet that are available for you to use, such as you can use Evasi0n to jailbreak iPhone, or employ other tools like Absinthe, JailbreakMe, etc. You can make a contrast among them and choose the suitable one to download and jailbreak your iPhone following the instructions. However, do carefully take the above tips and warnings before you jailbreak iPhone.