http://rcm.amazon.com/e/cm?t=widgetsamazon-20&o=1&p=8&l=bpl&asins=B002C7481G&fc1=000000&IS2=1<1=_blank&m=amazon&lc1=0000FF&bc1=000000&bg1=FFFFFF&f=ifrEarlier we have posted that if your iPhone, iPod touch, iPad is jailbroken then iBooks app of Apple does not open digital books loaded with DRM on your iOS device. iPhone hacker Comex reports that iBooks app tries to check whether the iPhone, iPod touch or iPad is jailbroken or not by executing improperly signed binary. If this app founds your iOS device is jailbroken then it does not open. Now the good news is in order fix this issue a new jailbreak tweak has been released in Cydia. The name of this tweak is iBooks Fix. It is available for free of cost.
Simply you have to add http://repo.insanelyi.com repository in Cydia and then you have to install iBooks Fix on your jailbroken iPhone, iPod touch, and iPad. After you have installed this tweak on your iOS device now you can open iBooks app and access all your DRM-filled books on your jailbroken iPhone, iPod touch, and iPad.