- REDSN0W JAILBREAK IPHONE 3G 4.2.1 INSTALL
- REDSN0W JAILBREAK IPHONE 3G 4.2.1 UPDATE
- REDSN0W JAILBREAK IPHONE 3G 4.2.1 DOWNLOAD
After 8 seconds you can release the home button, and watch Redsn0w do it’s thing.Īfter about 5 minutes your device will reboot and you’ll see the Apple logo.When 10 seconds pass, release the sleep button and continue holding the home button for 8 seconds. Hold the sleep and home buttons for 10 seconds.After three seconds are up, continue holding the sleep button and then start holding the home button.With the device turned off hold just the sleep button for 3 seconds.Turn off your device by holding the sleep button for 5 seconds and sliding to power off.But make sure you are ready, because it starts right away. The instructions and a counter are right there in the app to help you out with this step after you click next. It’s easy to mess this part up, so read through all of these steps to make sure you get it right. Your device is now unlocked.ĭisclaimer: This guide is for testing & educational purposes only.Use it at your own risk.I’m not responsible for any loss of important data or malfunctioning of your iPhone.The next part of the process is to get your device ready for Redsn0w to do the jailbreak. Now if you have iPhone 3GS New bootrom you will have to connect it with Resnow and select the “Just boot tethered right now” option to get the jailbreaked state on every boot.Īfter your device is jailbroken using the above mentioned procedure, open the Cydia App and search for Ultrasn0w. Once completed your phone will restart and you will find it jailbroken on iOS 4.2.1.
Follow the onscreen instructions to put the idevice into DFU mode. Step 9: At this step make sure that your phone is switched off and plugged into the computer. Optionally you can also select any other option available for your idevice. Step 8: Click on next and select “Install Cydia” and “Install iPad Baseband” options.
Step 7: When asked for iOS firmware, point the redsn0w to iOS 4.2.1 downloaded in first step.
REDSN0W JAILBREAK IPHONE 3G 4.2.1 DOWNLOAD
Step 6: Download Redsnow 0.9.6 beta 4 and run it. Step 5: Update/restore your device to iOS 4.2.1 via iTunes. Step 4: Save the SHSH blobs if you are still on iOS 4.1 or below version. Step 3: Back up all the contents on your phone before you start the actual jailbreak process.
REDSN0W JAILBREAK IPHONE 3G 4.2.1 INSTALL
Step 2: Download iTunes 10.1 and install it on your PC. Step 1: Download iOS 4.2.1 for your idevice. You’ll need to only restore to custom IPSWs (then again, if you’re unlocker you should already be doing that). Starting with FW 4.2.1 if you have 06.15 on your iPhone you won’t ever be able to restore to stock firmware (it will fail).
REDSN0W JAILBREAK IPHONE 3G 4.2.1 UPDATE
If some future baseband comes out with a critical fix, you won’t be able to update to it if it remains down in the 05.xx sequence (then again, you wouldn’t update to it if you wanted to keep your unlock anyway).ģ. You’ll be voiding your warranty in a very obvious way.Ģ. Well the good news is iPhone dev team has released updated version of Redsn0w jailbreak tool, Redsn0w 0.9.6B4 which lets you to have untethered jailbreak iPhone. There is no way to come back down from 06.15, and there’s no hiding the baseband version from Apple. Warning: Read the instructions carefully before start the procedure.ġ.
After the device is jailbroken,you can use Ultrasn0w from Cydia to unlock the device. IPhone Dev Team has already released UltraSn0w 1.2 to unlock iOS 4.2.1 on iPhone 3G, 3GS using Reds0w and Ultrasn0w.Here is the step by step guideline to unlock iOS 4.2.1 on iPhone 3G, 3GS using Reds0w and Ultrasn0w.įirst you have to update the baseband to iPad 06.15 and jailbreak the iPhone with Redsn0w.
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