iPhone Dev team has released redsn0w 0.9.10b5 to include fix for iBooks DRM issues. Users facing issues with installing iBooks, no / broken images or text can now re jailbreak their iPhone 4S with redsn0w 0.9.10b5 to resolve all bugs with iBooks.
To resolve the issue in iOS 5.0.1 @planetbeing has written a utility named crazeless, which is incorporated in both redns0w and Corona untether tool.
@planetbeing wrote a utility called “crazeles” that overcomes jailbreak detection byiBooks that would cause about 10% of images to show incorrectly. This fix is similar to the “hunnypot” fix that @comex wrote for the 4.x jailbreak.
If you have already installed cydia and facing the error must run the redsn0w version b5 and also please make sure to uncheck “install Cydia” option to avoid any unexpected errors.
Corona 1.0-6 will also be releasing soon to include the fix for the same issue. But users who rely on Redsn0w can use the updated version.Users who were not facing any issue, need not to re-run the updated redsn0w.
Download redsn0w 0.9.10b5 (Direct links)