Apple s3 can unlock the mobile phone by jailbreaking. Apple's iOS system jailbreaks, which is similar to the cracking certificate of Nokia Saipan system. After jailbreaking, Apple's mobile phone will be able to bypass Apple's official APP market and freely install cracked paid software or third-party magic change-made software. In terms of hardware, after jailbreaking, it can also perform partial overclocking operation on the CPU and GPU, so as to strengthen the user's control over iOS devices.

Definition of terms:

The first step to crack an iOS device (iPhone, iPad or iPod touch) is to install plug-ins and unlock them after jailbreaking. Jailbreak enables third-party management tools to fully access all directories of iOS devices (iPhone, iPad or iPod touch) and install plug-ins and pirated software that change system functions.

In more detail, jailbreaking refers to taking advantage of some vulnerabilities in the iOS system, obtaining the root authority of iOS through instructions, and then changing some programs to strengthen the functions of the device and break through the closed environment. IOS devices (iPhone, iPad or iPod touch) were closed when they were first bought.

as an ordinary user, we can't get the root authority of iOS, let alone install some software into our mobile phones. We can only buy software through the App Store in iTunes (of course, most of the commonly used software is free, and now some software can be pirated directly without jailbreaking).

then through the way approved by Apple (this process enables Apple to ensure that the application installed by the user in the device is signed by the developer and has not been tampered with. Apple ensures the security of user information in this way), and copies the software we legally get into the mobile phone.

But this way, our users are firmly bound in the jurisdiction of Apple. However, some useful software may not be in Apple's interest. Or in Apple's view, they may violate consumers' information security, so they can't enter the App Store.

the above contents refer to Baidu encyclopedia-iphone jailbreak.