How To Jailbreak iOS 5.1 On iPhone 3GS Using Redsn0w For Windows
Earlier this month, apple pushed new iOS update 5.1 with some updates like Sir for iPhone 4S in Japanese language, setup assistant bug fix, some battery issues and some general updates like the permanent camera button on the lockscreen. Some iPhone users have already updated their devices to iOS 5.1 through OTA update.
This method will update your iPhone baseband so if you rely on unlock then you should follow the tutorial that helps you upgrade your iPhone without updating the baseband here. This is a tethered jailbreak which means that every time your iPhone restarts you'll have to connect it to the computer and run redsn0w.
Take a back up of your iPhone before beginning.
Before we begin, make sure you download the current iOS 5.1 and the latest version of redsn0w.
Download link for redsn0w : http://tinyurl.com/43ne8or
Download link for iOS 5.1 :
http://tinyurl.com/69ycbzmDownload link for redsn0w : http://tinyurl.com/43ne8or
Upgrading iPhone to iOS 5.1
Skip this step if your device is already on iOS 5.1. launch iTunes and wait for your iPhone to appear in the left side of iTunes. For the list of devices, select your device and by pressing down the shift key, click on restore button and point the iOS 5.1 firmware that you have downloaded on your dektop to iTunes. iTunes will start upgrading your device to iOS 5.1
If you followed the above steps exactly as mentioned, your iPhone should be upgraded to iOS 5.1
Redsn0w
Once your iPhone is upgraded to iOS 5.1, launch redsn0w by right clicking on the application and selecting 'Run as administrator' because redsn0w requires higher permission level to jailbreak your iPhone.
Connect your iPhone to the computer and select the option 'jailbreak'
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Skip this step if your device is already on iOS 5.1. launch iTunes and wait for your iPhone to appear in the left side of iTunes. For the list of devices, select your device and by pressing down the shift key, click on restore button and point the iOS 5.1 firmware that you have downloaded on your dektop to iTunes. iTunes will start upgrading your device to iOS 5.1
If you followed the above steps exactly as mentioned, your iPhone should be upgraded to iOS 5.1
Redsn0w
Once your iPhone is upgraded to iOS 5.1, launch redsn0w by right clicking on the application and selecting 'Run as administrator' because redsn0w requires higher permission level to jailbreak your iPhone.
Turn off your iPhone and click next.
Follow the onscreen instructions carefully to enter DFU mode.
Instructions For Getting Into DFU Mode
- Switch off your iPhone
- Hold the power button for 3 seconds
- Now, without releasing the power button also press and hold the home button for 10 seconds.
- Without releasing the home button, release the power button but continue holding the home button until your device enters DFU mode and you redsn0w automatically detects it.
If you followed the above steps correctly, redsn0w will reboot your iPhone and will begin the jailbreak process.
Now select Cydia to complete the jailbrekeak process
Tethered Boot
Remember that this is a tethered jailbreak and you'll have to connect your iPhone to computer everytime your iPhone restarts. Follow the below process to boot tethered, ever time your iPhone restarts.
Step 1: Select Extras and click next
Step 2: Select Just boot from the extras menu to boot your iPhone.
That's it. You are done with jailbreaking and booting iPhone into tethered mode.
To restore iPhone from a saved back up, follow this guide
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