The untethered iOS5 jailbreak isn’t ready yet, but the hints are looking like it won’t be long. However, thanks to the old limera1n exploit and the early release of iOS5 to developers, a tethered iOS5 jailbreak is available to most idevices excluding the iPhone 4S and the iPad 2. These two new devices use the A5 chip which doesn’t allow the exploit. Keep tuned though, as it won’t be long.
If you want to jailbreak your iPhone 4 or earlier and you want iOS5 – here is the guide:
Remember, this is a tethered jailbreak – meaning that you will need to plug your iPhone into your PC/mac if you need to reboot. For this reason you may want to wait for an untethered iOS5 jailbreak which will let you reboot anywhere you like.
1 – Get your software
Make sure you have the most recent version of redsn0w and the iOS 5 IPSW firmware file for your iOS device. The links to redsn0w and the IPSW firmware files are below (direct from Apple).
Save these on your home computer.
Here are the links:
2 – Get iOS5
Note: if you rely on using an unlock you must stop now. IF you update to iOS5 you will lose your unlock and you may not get it back. If you don’t need an unlock, carry on.
Plug your iPhone into your iTunes (which must be the latest version) and update to iOS5. Go out, this takes ages.
3 – Select the IPSW and jailbreak your iOS device
Once on iOS5, you need to run redn0w on your computer.Make sure your iPhone is switched off, then plug it in to your computer. Now in redsn0w, click “Extras” and select your iOS 5 .ipsw file. Once you’ve selected the firmware file, redsn0w will process it.
The “Extras” section of redsn0w
Once the firmware has been processed by redsn0w, click on ‘back’ and then click ‘jailbreak’. On the next screen, ensure that the “Install Cydia” box is ticked, and then continue.
The next step involves putting your iOS device into DFU mode. In reds0w, instructions are provided. However, just to give you a heads-up, putting an iOS device into DFU mode involves holding the Lock button for three seconds, the Lock and Home button together for 10, and then just the Home button for a further 10-15 seconds.
Once you have the iPhone in DFU mode, sit back and watch as redsn0w works it’s magic. Redsn0w will jailbreak your iPhone and install cydia for you. Don’t worry about all the code on your iPhone screen, this is normal. Just make sure you wait for the entire process to finish.
3 – Boot tethered
You will need to boot the iPhone before you can use Cydia. Remember this is a tethered jailbreak, so you must ensure your iPhone is connected to your computer. You will need to do the following every time the iPhone powers off, so remember it!
Turn the iPhone off and launch redsn0w on your computer. Go to ‘extras’ and select your firmware file. Wait while redsn0w processes the file.
Still in the ‘extras’ screen, select ‘just boot’. You will need to put your iPhone in DFU mode again, but all redsn0w will do this time is boot up your iPhone, which takes just a few seconds.
4 – Fin!
Well done. You now have an iPhone (not iPhone 4S) running iOS5, and jailbroken. Lush.
Just remember, if your iPhone powers down or crashes you will need to boot tethered to get it working again. IF you want to go back to the standard iOS5 (non-jailbroken), you can do so via a ‘restore’ in iTunes.
Prefer a visual? – Check this video