As it was earlier mentioned that iPhone IOS 4.2.1 on iPhone, iPod Touch and iPad is getting iBook error But with GreenPoison RC 6.1, iBook Error can be fixed easily. Even after using GreenPoison rc5 to Jailbreak iPhone IOS 4.2.1. The SnowBreeze 2.2 to Jailbreak iPhone IOS 4.2.1 on Windows and Pwnage Tool 4.2 to Jailbreak iPhone IOS 4.2.1 can already fix the problem but if you have used only GreenPoison rc 5, then you have to use rc 6.1 to fix iBook error Read more..
