How to Update iPhone 4, 3GS Without Updating Baseband [RedSn0w Guide] - iPhoneHeat

How to Update iPhone 4, 3GS Without Updating Baseband [RedSn0w Guide]

Wan to update iPhone 4 or iPhone 3GS to update latest iOS without updating iPhone baseband to unlock it later using UltraSn0w or Gevey SIM? you’re at the right place. These are the steps to update iPhone 4 or iPhone 3GS to latest iOS firmware without updating the baseband.

RedSn0w brings the Restore feature to update iPhone iOS without updating the baseband. Baseband preservation is applicable to iPhone 4 and iPhone 3GS. iPhone 5 or iPhone 4S are not supported.

Simply follow the RedSn0w steps below to update your iPhone 4 and iPhone 3GS firmware without updating the baseband for unlocking.

How to Update iPhone 4, 3GS Without Updating Baseband

This guide is for both Windows and Mac users.


Download RedSn0w 0.9.15b1: Windows | Mac
Download iOS Firmware you would like to upgrade to for your iPhone 4 or iPhone 3GS

Step 1

  • Extract the downloaded RedSn0w zip file and you’ll get the RedSn0w.exe;
  • Now execute the RedSn0w.exe file and click Extras from the RedSn0w menu;
  • Then click Even More;
  • and then click the Restore button.

Step 2

Click on the IPSW button;


Browse and select the download iOS firmware file you would like to update to and then hit the open button;

RedSn0w will prompt you if you would like to Prevent baseband update. Click the Yes button to prevent your iPhone baseband from updating.


Step 3

RedSn0w will prompt you that the DFU mode is required. Click the OK button;


Now connect your iPhone 4/3GS to your computer, turn it OFF and click the Next button on RedSn0w;


Follow the on-screen instructions to enter DFU mode. Also checkout our guide on how to put iPhone in DFU mode.

  • Release the Power (corner) button for 3 seconds
  • Without releasing the Power button, also hold down the Home button for 10 seconds
  • Without releasing the Hom button, release the Power button BUT keep holding the Home button until RedSn0w detects the device.


Step 4

Once you’ve successfully entered your iPhone in DFU mode, RedSn0w will exploit it using Limera1n.


Then it will prepare a restore image, restore the device with new firmware, and it will prompt you when the restore process is completed successfully.



RedSn0w Guides

How to: create Custom firmware with RedSn0w

19 comments… add one
Hassan October 16, 2012, 8:00 am

So this works with IOS 6 as well for iPhone 4?

iPhoneHeat October 16, 2012, 5:55 pm


nGanNgan October 16, 2012, 8:55 pm

My iPhone 4 Restore IOS5.1.1(9B208) Have Unexpected error (2601)..I use RedSnow 0.9.15b2..Y????

xendox October 17, 2012, 10:44 am

I also get this error message.

nGanNgan October 20, 2012, 11:15 am

Haiksss… FAST !!!!

tuannawd October 17, 2012, 6:57 pm

error 2601 not fixed in 0.9.15b2 !!! Help……

huzaifahaider October 19, 2012, 2:18 pm

hey i am trying this method but after ibss upload it says phone found in dfu mode instead of recovery so cannot restore ipsw and then closes i am using 0.9.15b2 how to overcome this problem?

syst3m October 19, 2012, 6:28 pm

there is an error in the latest version of redsn0w, wait for the dev-team to update it and fix the error.

nik007 October 28, 2012, 11:09 am

Its not working, Cann’t restore my iPhone 3GS with Redsn0w 0.9.15b2 , Error has not fixed yet and Now I stuck in recovery mode, I cann’t push iOS 6 nore my previous 5.1.1.
I am totally lost, my iPhone become dead.
Redsn0w fucked me!!!!!!!!!

Magic October 30, 2012, 3:47 pm

so do i now what should ;ve done….

Magic October 28, 2012, 7:09 pm

Hi my i phone 4 gets error 2601 when restoring… and stuck at Recovery mode. redsn0w recovery fix doesn;t work at all. i’m using Gevey sim. so what should i do? Help guys..

Magic October 30, 2012, 3:46 pm

Hi my i phone 4 gets error 2601 when restoring… and stuck at Recovery mode. redsn0w recovery fix doesn;t work at all. i’m using Gevey sim. so what should i do? Help guys..

Khaled December 8, 2012, 5:25 pm

It worked for my iphone 3gs with redsn0w_win_0.9.15b1, just followed instruction by letter, thanks

sameer January 31, 2013, 4:59 pm

Updated my iphone 3gs now i cant activate it, i think i need to jailbreak it, anyone helping?

reza_gk February 24, 2013, 6:00 pm

I tried to restore with redsnow 15b3 and IPSW(iPhone3,1_6.1_10B144_Restore.ipsw) for updating my iphone4 IOS4.3.3 to 6.1 but I got this error during updating blobs message :
Could not fine recovery device.

reza_gk February 26, 2013, 12:31 pm

Is there any body to help me?
Actually, you can find screen captures in below links :
please help me

eamon89 March 23, 2013, 10:45 pm

I am having the same problem. “cannot find recovery mode device”. Anyone know how to fix this issue?

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