What does iphone jailbreak do?

There are two kinds of iPhone: the first generation and the second generation. The first generation used 2G network, which is commonly known as GSM, and supported GPRS/EDGE Internet access and WIFI. The second generation adds 3G network support and A-GPS support of WCDMA standard on the basis of the first generation.

IPhone cracking is divided into three steps: unlocking, activating and jailbreaking. At present, the soft solution tool is quite mature, and the above three steps can be basically completed at one time. Unlocking refers to unlocking the binding relationship between iPhone and SIM card of mobile phone service provider, and users can use any card; Jailbreak refers to letting the iPhone's operating system jump out of Apple's restrictions on third-party software, and you can install third-party software other than App Store sales software; Activation means that the iPhone can jump out of the locked state and use various functions of the phone. Usually, after the iPhone bound by the mobile phone service provider is bought back, it can do nothing but make emergency calls, and it needs to go through the above three steps to use normal functions.

If it is a generation, the domestic SIM card can be cracked and used by software at present; If it is the second generation 3G version, the software cannot be unlocked temporarily. At present, it needs to be unlocked by means of a card sticker (the shape of the card sticker is similar to the size of a SIM card. When using, you need to cut a small corner of the SIM card, then stick the card and fold it, and insert it into the SIM card slot.

The cracked iPhone can normally use the domestic SIM card, but because the current WCDMA standard network is only in the trial stage and there is no formal numbering, the second-generation iPhone cannot enjoy the 3G network.

Through the continuous efforts of developers, the usability of the current iPhone has been greatly improved. MMS, SMS forwarding, camera shooting, firewall and other functions can be realized by third-party software (some software needs to be charged separately), and a large number of iPhone games and software (many of which have cracked versions) can be purchased or downloaded through iTunes App Store. Of course, the iPhone still has some shortcomings, such as not being able to copy and paste, the browser Safari is still prone to crash, and the system memory management is not good.

Weifeng Com () is the largest iPhone-related forum in China, and many enthusiastic friends are trying to use the iPhone better.

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