Jailbreak iOS 4.1 beta Firmware with Sn0wBreeze 1.8 - iPhoneHeat

Jailbreak iOS 4.1 beta Firmware with Sn0wBreeze 1.8

Sn0wBreeze 1.8 to jailbreak iOS 4.1 beta firmware is now available for download. Using Sn0wBreeze v1.8 you can jailbreak iOS 4.1 beta on iPhone 3GS (Old BootRom), iPod Touch 2G (non-MC), and iPod Touch 3G. iOS 4.0 jailbreak instructions after the jump…
jailbreak ios 4.1

If you’ve an iPhone 3G you can use RedSn0w 0.9.5b5-5 to jailbreak iOS 4.1 beta:

Sn0wBreeze 1.8 Supports

  • iPhone 3GS (old bootrom)
  • iPod touch 2G (non MC model)
  • iPod touch 3G


  • Your iDevice MUST be pre-jailbroken on iOS 4.x.
  • Unlockers MUST stay way from iOS 4.1 beta.
  • It does NOT hacktivate iPhone so legit Carrier users only.

Let’s create custom firmware of iOS 4.1 beta and jailbreak iPhone 3GS (Old BootRom), iPod Touch 2G (non-MC), and iPod Touch 3G.

Jailbreak iOS 4.1 beta with Sn0wBreeze 1.8

NOTE: All the required stuff is linked below under Downloads.

Step 1

Install the iTunes and .NET Framework 3.5 (required for Sn0wbreeze). Make sure you’ve installed the iTunes 9.2. Open the iTunes and backup your iPhone data. Now you can proceed. (Download Links below)

Put the iOS 4.1 beta Firmware and Sn0wBreeze v1.8 into a folder on your desktop. (Download links below)

Step 2

Run the Sn0wBreeze v1.8 for iOS 4.1 and hit next button.

jailbreak ios 4.1

jailbreak ios 4.1jailbreak ios 4.1 sn0wbreeze 1.8

Step 3

Choose Simple Mode. Click the Next Arrow button.

jailbreak ios 4.1 sn0wbreeze 1.8

Step 4

Sn0wBreeze will ask for the iOS 4.1 beta IPSW file for your iPhone or iPod Touch. Click on the Browse button and navigate to the folder where you put your iOS 4.1 IPSW file and select it.

jailbreak ios 4.1 sn0wbreeze 1.8

Step 5

Sn0wBreeze will verify your selected firmware 4.1 beta file. Then Hit Next.

jailbreak ios 4.1 sn0wbreeze 1.8jailbreak ios 4.1 sn0wbreeze 1.8

Step 6

Hit the Start button. SnowBreeze will start building custom firmware for your iPhone that we will use later to jailbreak iOS 4.1.

jailbreak ios 4.1 sn0wbreeze 1.8

Step 7

Once the custom firmware IPSW file building process is complete, Sn0wbreeze will prompt you to enter iDevice into recovery mode.

jailbreak ios 4.1 sn0wbreeze 1.8

Step 8

Connect your iPhone to iTunes and select your iPhone from the left navigation pane in iTunes. Hold Down the SHIFT key on your keyboard and hit the Restore button (SHIFT + Restore)

Step 9

Now the iTunes will ask for the IPSW firmware file. Browse to the custom firmware iOS 4.1 that you built using Sn0wBreeze 1.8 and select it.

iTunes will Restore your iPhone with custom iOS 4.1 beta created with Sn0wBreeze. Once the iTunes is done with the restore process, your iPhone will restart automatically.

Voila! you’ve a fully jailbroken iPhone / iPod Touch with iOS 4.1 beta.


You can follow us on Twitter, Join us at Facebook, and also Subscribed to RSS Feed to receive latest updates on iPhone 4, iPod Touch and iPad jailbreak, UltraSn0w unlock and iOS.

26 comments… add one
Whiplash July 17, 2010, 9:19 pm

Hi, Come on guys bring out the jailbreak iOS 4.0 for iPhone 3GS (Old & New bootrom) that is NOT pre-jailbroken!!!! So I dont have SHSH saved.


mr_sanpablo July 17, 2010, 11:05 pm

yes pls.. i have 22 iphones to unlock.. all 4.0, all without shsh saved. mixed old and new bootrom.. pls guyz.. thx thx thx

nicaragua July 18, 2010, 9:10 am

Here i have a couple IPHONE 3GS on 4.0 withouth SHSH… so we all are waiting for the new spirit!!!

Mikeallmighty July 17, 2010, 11:34 pm

I just wish they had 3gs downgrade or a jailbreak 4.0 I just want this for my 3gs and enjoy the Iphone

Clau23 July 18, 2010, 12:24 am

Hello please guys release the jailbreak for 3GS ios 4.0
Please Please Please

Mikeallmighty July 18, 2010, 1:02 am

i wounder why they’re comming out with all these different jailbreaks and unlocks but they’re leaving out the 3gs 4.0 interesting

Iceman14n July 18, 2010, 3:12 am

Please bring out the jailbreak for 4.0 on 3GS that is not pre jailbroken! Please I miss my jailbreak! I dint hve any shsh blobs!

mmrq July 18, 2010, 3:17 am

Need Jailbreak and Unlock for Iphone 3GS which is officially updated with iOS 4.

Can anyone please HELPPPPPPPPPPPPPPP!!!

taptwo July 18, 2010, 8:38 am


MagicJeffHardy July 18, 2010, 1:40 pm

Will this work for iPod Touch 3G running iOS 4.0 and it has never been jailbroken?? PLZ REPLY!!

iPhoneHeat July 18, 2010, 2:53 pm


Brian July 20, 2010, 8:57 pm

Please release sprint for 3GS iso 4.0……. At least tell me when will you expected to release?

iPhoneHeat July 21, 2010, 12:06 am

within a week or 2, i guess

Brian July 21, 2010, 7:44 pm

ok. Thanks.

jimmyjimmyPR July 23, 2010, 3:50 pm

Hello I have a 3GS which is officially updated with iOS 4.0 and Need Jailbreak and Unlock IT I have NO SHSH blobs saved Please Notify me via e-mail when a Jailbreak is release Thanks.

Emp July 25, 2010, 1:39 am

Why is it taking so long for the jailbreak of 3gs 4.0 firmware? the 3g JB has been out for over a month. now they are showing 4.1 jailbreaks. come on what about 4.0 3gs, there are more users of 3gs now then any other model.

iPhoneHeat July 25, 2010, 1:40 am

will be out in a few days 🙂

Conor September 21, 2010, 6:37 pm

Will this work on an iPod touch 2nd gen with 4.1?

Stock Market News July 22, 2011, 1:01 pm

I absolutely like this blog. Thank you for publishing it.

Leave a Comment