How to Jailbreak Your iPhone Without Updating the Baseband (Windows) [5.0.1]
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Posted December 22, 2011 at 2:13am by iClarified · 309225 views
These are instructions on how to jailbreak your iPhone 3GS or iPhone 4 on iOS 5.0.1 without updating the baseband using RedSn0w for Windows. You may want to do this to preserve an unlock from a lower baseband version.
Please note this jailbreak is tethered for every device but the old bootrom iPhone 3GS which means you will need to connect your device to the computer each time you reboot. Also, it may be prudent to save your SHSH Blobs by following this tutorial before continuing if you haven't already.
If you want to jailbreak a lower firmware version you can find the appropriate tutorial here.
Step One Create a folder on your desktop called Pwnage
Download RedSn0w 0.9.9b9d or higher from here and place it in the Pwnage folder. Likewise, download the 5.0.1 firmware from here and place it in the Pwnage folder.
Extract the RedSn0w zip file by double clicking it.
Step Two Launch the redsn0w application from the redsn0w folder we just extracted.
Step Three Click to select Extras from the main menu.
Step Four Click to select Custom IPSW from the Extras menu.
Step Five Navigate to the Pwnage folder on your desktop and select the IPSW we downloaded then click Open.
If you are using the iPhone 3GS you may be asked to identify whether you are on a newer or older model.
Step Six RedSn0w will now begin building a custom IPSW for you.
Step Seven You'll be notified once RedSn0w has completed building your IPSW. Click the OK button.
Step Eight Click the Pwned DFU button from the Extras menu.
Step Nine Plug your iPhone into the computer and make sure its OFF then click the Next button
Step Ten RedSn0w will now guide you through the steps to get into DFU mode. You can find more help with DFU mode here
Hold down both the Home button and the Power button for 10 seconds.
Release the Power button and continue holding the Home button until RedSn0w detects the device.
Step Eleven RedSn0w will run the LimeRa1n exploit.
Step Twelve You'll then be notified that your iPhone is in Pwned DFU mode.
Step Thirteen Launch iTunes by clicking its icon in your dock.
Step Fourteen Select your device from the list on the left then under the Summary tab hold down the Shift key and click the Restore button.
Step Fifteen You will then be asked to select your IPSW for restore. Navigate to the Pwnage folder on your desktop and select the IPSW that begins with NO_BB then click the Open button.
Step Sixteen iTunes will now restore and jailbreak your device using the Custom IPSW.
JAILBREAK AND INSTALL CYDIA Follow these instructions to jailbreak your device on the new iOS 5.0.1 firmware. - iPhone 4 - iPhone 3GS
BOOT TETHERED Once you have jailbroken you will need to rerun redsn0w to boot tethered.
Step One From the main RedSn0w menu click the Extras button.
Step Two Select Just boot from the Extras menu to just boot tethered.
UNLOCK: If you have a supported baseband you can now install UltraSn0w to unlock your device. Instructions are here.
*As usual a big thanks to the iPhone Dev-Team and Geohot for their hard work and contribution to the iPhone community.
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u untether by installing corona on cydia... but anyways im reading that this is no good anymore because of release of 5.1 so u have to install 5.1 not 5.0.1 if im wrong somebody tell me because i made the custom firmware and was ready to restore and a double check online came up that its not possible no more
it worked like a charm! I updated from 4.3 to 5.0.1 with a custom firmware. Then I restoed to the custom firmware. Lastly, I jailbroke it. I did it all with redsn0w. Make sure you follow all instructions carefully. Thanks iclarified:
Hello friend
Do i need to backup my Cydia/Installous/AppStore Apps/Packages/Tweaks before i jailbreak using Redsn0w (without updating my baseband since i need the unlock)?
Best regards
Not do sure about your cydia apps. I only had a few so did not mind reinstalling them. I did however; back up my iPhone in iTunes to keep contacts and other saved info. Then after jailbreak to a cistom firmware I backed up my phone in iTunes it was a fairly easy process. Then launch into cydia and magic I unlocked it with no problems :) I hope this helps good luck!
successfully jailbreak with the guide above great thx. but i have an issue here. everytime when i receive mms it will crash and i can't send mms out at all. i'm able to send sms. did you face the same problem as me? anyone have any idea? great thx
hello...need some advice from you'll..im currently using 3gs with iso 5.0.1 (9A405), firmware 05.16.05. can i jailbreak it to tethered iso 5.0.1 and unlock? as above shown?
successfully jailbreak with the guide above great thx. but i have an issue here. everytime when i receive mms it will crash and i can't send mms out at all. i'm able to send sms. did anyone face the same problem as me? anyone have any idea? great thx
well i carried out all the instructions to the letter and cannot get rid of the error 2005.
i changed the USB ports, reinstalled all apple software but to no avail. still error 2005. can anybody help please?
Hello, I have iphone 4 running on 4.3.5 (BB-04.10.01) and factory unlocked i gess Please advice, if I can update with custom ipsw 5.0.1 and jailbreak with redsn0w , the sim will still unlocked ?
If you have a factory unlocked phone , then there is no need to keep the lower baseband
(this is only needed to maintain your unlock using ultrasnow).
If youre sure you have a factory unlock then use this guide
https://www.iclarified.com/entry/index.php?enid=18989