iPhone Dev team has just released a new version of Redns0w 0.9.10b3, which fixes the problem. They have provided the following information on their blog:
The b3 version of redsn0w fixes a problem where re-running redsn0w over an existing jailbreak would cause MobileSubstrate-based apps to stop running until MS was installed again. Now you can re-run the redsn0w jailbreak step without worrying about that (but still remember to de-select the “Install Cydia” option if it’s already installed). Tiếp tục đọc →
In an earlier time today, we have posted a new update about corona 1.0.3, and at the time being we are going to inform that iPhone DevTeam has just released the Redsn0w v0.9.10b2 updates to Fix Launchctl error.
White Cydia Icon, How to Fix it following 5.0.1 / 5 Jailbreak ? This issue is significant for clients of iPhone 4, 3GS, iPod touch 4G, 3G and iPad 1 operating in iOS 5.0.1 / 5.0 and who may have experienced the issue that the Cydia icon turns to white.
That can occur on installing specific tweaks or operating in the tethered mode also. Updating the jailbreaks apps, at many times, can solve the problems, but certain times the problem may persist. A feasible solution, in this scenario is to reinstall Cydia.
How to Fix White Cydia Icon After 5.0.1 / 5 Jailbreak – iPhone 4, 3GS, iPod Touch 4G, 3G, iPad