Download redsn0w 0.9.10b3 to fix MobileSubstrate error being faced after iOS 5.0.1 untethered jailbreak. The iPhone Dev Team has just updated their redsn0w jailbreak tool to fix MobileSubstrate error.
What exactly is MobileSubstrate again? Not many new jailbreakers are aware of this crucial component and usually freak out when MobileSubstrate crashes on their devices. Basically MobileSubstrate is a platform on which some of the most popular jailbreak tweaks and apps are built. So it goes without saying that when MobileSubstrate crashes, these tweaks and apps are rendered useless. There's no point in having an iOS 5.0.1 untethered jailbreak if this element keeps crashing. This issue is being faced by those who used redsn0w 0.9.10b1 or Corona over their existing iOS 5.0.1 tethered jailbreak. Luckily, with the new redsn0w update, you can fix MobileSubstrate error.
Only yesterday, the iPhone Dev Team released redsn0w 0.9.10b2 which allows you to fix launchctl error after 5.0.1 untethered jailbreak. It's pretty normal for a new jailbreak to run into a few bugs right after its release. As the jailbreak goes in the public's hand for testing, many new bugs surface that are sometimes overlooked during testing phases. Instructions to fix MobileSubstrate error have been provided below.
How To Fix MobileSubstrate Error After iOS 5.0.1 Untethered Jailbreak:
Step 2: Launch redsn0w and connect your device to the computer.
Step 3: Click on Jailbreak. Be sure to uncheck Install Cydia.
Step 4: Follow onscreen instructions to put your device in DFU mode.
Step 5: Wait for redsn0w to run its magic. Your device will automatically reboot. There's nothing more you need to do to fix MobileSubstrate error.
If you're not aware, this jailbreak is currently only for A4 based devices. This includes the iPhone 4, iPhone 3GS, iPod touch 3G, iPod touch 4G and the original iPad. This jailbreak is being tested out extensively and should be able to allow an iOS 5.0.1 untethered jailbreak for iPhone 4S and iPad 2 soon.
You will be able to fix MobileSubstrate error permanently if you followed the directions given above to the point. However if you do run in to any issues at some point, just leave a comment down below. We'll help you out instantly.