How to Upgrade Your iPhone to iOS 5.1 Without Updating Your Baseband (Win)

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Posted March 8, 2012 at 8:52pm by iClarified

These are instructions on how to upgrade your iPhone 4 GSM or iPhone 3GS to iOS 5.1 without updating your baseband using Windows. This will maintain the potential to unlock if you are on a supported baseband.

Step One
Download the latest version of RedSn0w from here and place it in a Pwnage folder on your Desktop.

How to Upgrade Your iPhone to iOS 5.1 Without Updating Your Baseband (Win)

Step Two
Download the iOS 5.1 firmware for your device from here and place it in the same Pwnage folder.

Step Three
Extract the RedSn0w archive then right click the RedSn0w executable (from within the extracted folder) and select Run as Administrator to launch the application.

Step Four
Click Extras from the RedSn0w main menu.

Step Five
Click Custom IPSW from the Extras menu.

Step Six
Select your iOS 5.1 firmware from the Pwnage folder on your Desktop and click Open.

Step Seven
RedSn0w will now customize an IPSW file for you.

Step Eight
RedSn0w will inform you once your IPSW has been created successfully. Click the OK button.

Step Nine
Click Pwned DFU from the Extras menu.

Step Ten
Connect your device to the computer via USB and power it off. Then click the Next button to continue.

Step Eleven
Hold down the Power button for 3 seconds.

Step Twelve
Without releasing the Power button, also hold down the Home button for 10 seconds.

Step Thirteen
Without releasing the Home button, release the Power button BUT KEEP holding the Home button until your device is detect in DFU mode.

Step Fourteen
You device will now be exploited with LimeRa1n.

Step Fifteen
Once its done you will be in Pwned DFU mode.

Step Sixteen
Launch iTunes by clicking its icon in the dock.

Step Seventeen
Select your device from the list on the left, then hold down the Shift key and click Restore.

Step Eighteen
Select the NO_BB custom IPSW from the Pwnage folder on your desktop and click Open.

Step Nineteen
You iPhone will now be upgraded to iOS 5.1 without updating the baseband.

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AK - April 24, 2013 at 6:02am

I have Iphone4 with ios 4.x.x, cand I still upgrade it to 5.1.1? Itunes gave me 3194 error (Apple not signing old ios). Can I upgrade ios without using itunes and use redsn0w IPSW restore? or I have to use itunes and upgrade to the current IOS and downgrade back to 5.1.1?

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jojo - March 25, 2013 at 11:41pm

does all the queries has been answered?

chris - January 18, 2013 at 8:18pm

also got the 3194 error?

Ezral - January 7, 2013 at 8:28am

I'm stuck at error 3194..Pls help....

OILIVER - November 2, 2012 at 11:21am

3194 ERROR WHAT SHUOLD I DO NEXT?

gpfel - September 25, 2012 at 8:53pm

iphone 3gs: i unlocked it already, with jailbreak. can i do that having jailbreak on it?

Iñaki - August 23, 2012 at 9:35pm

Hi all, I have done all the process. Once I have done the step eighteen, iTunes start to extrac the IPSW and when it finishes, iTunes tells me something about a mistake 3194. Does anybosy something about this error? Thanks a lot,

gurpreet - September 23, 2012 at 6:41am

I am getting the same error while restoring my iphone 4 " the iphone could not be restored (3194)"

Darrien - July 13, 2012 at 5:41pm

iPhone 3gs. In going through the procedure, I got an error 10 when restoring in iTunes. The phone then hung at the progress bar. I did a hard reboot and then it went into a recovery loop. I cant get out. Tried with Redsn0w and Tiny Umbrella but neither work. I tried Recovery Fix in Redsn0w but it wants me to enter DFU - I CANT GET OUT OF RECOVER TO ENTER DFU! Procedure history: Started with 3gs on 4.3.5 bb 5.16.02 Downgraded to 4.1 and upgrade bb to iPad 6.15: http://forums.macrumors.com/showthread.php?t=1211718 Downgrade baseband to 05.13.04: http://blog.iphone-dev.org/post/25350690843/0615-fun Then I tried to upgrade to iSO5.1 without updating baseband (This tutorial on iClarified). And that's when I got the error 10 as noted above.

Darrien - July 12, 2012 at 7:00pm

When creating the custom IPSW file, I was warned that if I have the newer iPhone 3gs, I would need SHSH Blobs to complete the restore? Is this still the case? If so, how do I go about getting such blobs?

Paresh Bijvani - June 5, 2012 at 1:05pm

I am using my USA AT&T iphone in India, which is locked by AT&T. Before I upgrade it to iOS 5.1 using this tutorial, just want to know whether it will ask for activation after upgrade. I have read somewhere that after you upgrade iOS we need career's sim card to activate it. Please let me know if anybody have any idea.

Amine MBS - May 19, 2012 at 7:20pm

my (iPhone 4) is in iOs 4.3.5 and it is Looked on sfr and I unlook by GEVEY sim. I want upgarde to 5.1.1 and I want kept unlook GEVEY with my (my baseband: 4.10.01) >>>> if i upgarde it without Changing My baseband then jailbreak it work or not my GEVEY <<<<< <

Nuruzzaman - April 23, 2012 at 5:47am

Sadly I've updated my iPhone 3GS to iOS 5.1 now it only showing me options to select: Language/Country/wifi/network But my iPhone was jailbroken (not 100% sure I got it second hand). I can't connect to any wifi as there is nothing like this in Bangladesh(where I'm now). The iPhone gives me other options to set my network using iTunes and after taking a while iTunes keeps saying: ""there is no sim card installed in the iphone you are attempting to activate"" What to do I even can't use the phone. Please help me

james - April 17, 2012 at 11:08pm

i have error 11 how can i fix it pleaz

Eder Rodrigues - April 12, 2012 at 4:21am

Has anyone really tested to run an iPhone under these conditions? 1) iOS 5.1 JAILBREAKED 2) Preserved Baseband 3) Unlocked using Gevey SIM I have already done it and IT DOES NOT WORK JAILBREAKED (the wellcome message appears, but the "No SIM Card Installed" message is no more displayed). It only runs with iOS 5.1 without a jailbreak. Nobody has answered that question to me. So, if you want to upgrade to iOS 5.x, unlock using Gevey and enjoy having a JAILBROKEN iPhone, DO NOT UPGRADE TO IOS 5.1!!!

Nuruzzaman Sheikh - April 23, 2012 at 5:46am

Hi sadly I've updated my iPhone 3GS to iOS 5.1 now it only showing me options to select: Language/Country/wifi/network But my iPhone was jailbroken (not 100% sure I got it second hand). I can't connect to any wifi as there is nothing like this in Bangladesh(where I'm now). The iPhone gives me other options to set my network using iTunes and after taking a while iTunes keeps saying: ""there is no sim card installed in the iphone you are attempting to activate"" What to do I even can't use the phone. Please help me

Jay - May 26, 2012 at 3:53am

Have you found a solution yet?

RAMLu - April 10, 2012 at 8:48pm

it worked perfect for me! thanks!!

Eder Rodrigues - April 4, 2012 at 12:31am

Hello all, I have an iPhone 4 baseband 03.10.01 working with Gevey. I have just upgraded to iOS 5.1 using redsn0w. Before jailbreak, I have successfully unblock my iPhone with Gevey script (dial 112, wait message "No SIM card installed" and so on). The problem is: when I jailbreak my iPhone, the "No SIM card installed" message is never displayed. I dont know what else I can do. Someone can help me? Thanks Eder

Adrian - April 3, 2012 at 7:26pm

Is this a tethered jb or a untethered one?

alireza366 - April 8, 2012 at 3:07pm

This is only updating your firmware. This is NOT a jailbreak

Chris - March 13, 2012 at 9:00am

This is for iPhone 3GS and iPhone 4 not for A5 devises like 4s

cccdan - March 11, 2012 at 5:39am

I have a 3gs old bootrom 00.16.00 bb jailbroken and unlocked using Redsn0w and Ultrsn0w. Am I correct that I can use the above to update to 5.1 and still have untethered Jailbreak and Unlock? Can I downgrade to 5.0.1 if I have saved the proper files?

cccdan - March 11, 2012 at 5:43am

Correction 06.15.00 BB

GM7 - March 10, 2012 at 5:14pm

Will it work on the iphone 4S, I have 5.0??

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