The iPhone Dev-Team released the latest version of the RedSn0w jailbreak over Christmas weekend (Merry Christmas!), but there are a quite a few issues that seem to be plaguing the release. That could be because it's a tester version.
The Dev-Team mentions that this version of RedSn0w implements the "backup plan" to the 4.2.1 untethered jb. Currently, it's only available for Mac users (for the sake of keeping things manageable), so those of you on a Windows system will have to wait, but that's probably the best thing to do anyway.
The nice thing is that it's untethered, unlike the current form of the 4.2 jailbreak, which you can learn how to perform here (iPhone 4.2) and here (iPad 4.2).
Because it's a tester version, and we can't recommend trying it out thanks to the current bugs (look below for some of the known issues), we will not be posting a how to. You can, however, visit the Dev-Team blog (link) and find out how to do it through them. Just know that we think it would be best to wait, unless you have a secondary iOS device you don't mind testing on. It would benefit the entire community as the Dev-Team needs all the help that they can get in finding bugs to squash.
It's also worth noting that if you have an iPhone 3G and certain models of the iPhone 3GS (look at our how to jailbreak iPhone 4.2 linked in the paragraphs above for more information on compatible models) you do not need this, because the jailbreak is already untethered.
For information on what a tethered vs untethered jailbreak is, please read this guide: Here.
Known Issues listed after the jump
- Netflix App Crashes
- Mobilesubrate Crashes
- Bluetooth disabled
- App Switcher crashes device
- YouTube doesn't currently work
- AirPlay does not work
- Videos on camera roll do not work
- iPod Player doesn't work on iPhone 4 or the iPad
- Some App Store Apps Not Working
- Some devices getting stuck in boot loop
Accessories & Apps: Beta Testers Wanted
iOS Firmware/IPSW Download Guide
Legacy iTunes Download Archive
App Store Top Charts
iPhone and Android Resale Value Charts
USA iPhone Carrier Plans Compared
Complete iPhone Jailbreaking Guide 
Complete iPhone Specification Matrix 
Why even bother releasing this crap when it’s truly not ready for prime time. There are going to be countless script kiddies that try this, fuck up their phones, and then blame the dev team.
Release a working product, not half-baked goods.
It’s called a beta version. That means it is a test version. Realize that most beta versions of anything are unpolished and could cause problems. If you don’t want to take a risk, don’t try anything in beta.
If youre following whats going on, they released it to get feedback so they could improve upon it. That’s why they prefaced everything by asking for testers.
I tested it myself, there are a few bugs and once I’m done recording them, I’ll restore and keep it tethered until a better solution is created but I don’t see a problem with it being released… It speeds up the process of ironing out the kinks so that we can get a better functioning version of redsn0w asap
*second beta has been released, apparently all app bugs are supposed to be fixed but Bluetooth is still disabled
Your so true. I 100% agree with this. But im going to try it out. These are just what people got errors not everyone can get those errors
ur not buying a ‘product’ or giving them anything else in return so dont act like some demanding customer. either help them get it done quicker by joining their effort or be a good moocher- shut up and wait for them to give noobs the green light where all YOU will have to do is press a button and have everything work perfectly.
the only thing half baked is your faulty sense of pseudo-ownership
Well said, Humphrey.