Jailbreak iOS 4 Firmware

Jailbreak iOS 4.0 Firmware

Apple has pushed the iOS 4 (formerly iPhone OS 4.0) for both the iPhone and iPod Touch to the developers. iOS 4.0 firmware will be released to general public on June 21st. Dev-Team has already jailbreak iOS 4.0 GM with RedSn0w 0.9.5b5 and previous iPhone OS 4.0 beta 4 and beta 1..

jailbreak ios 4.0All the iOS 4 jailbreak guides will be listed below. So bookmark this page for future reference. We’ll update this post as soon as a new Jailbreak iOS 4 guide is published on iPhoneHeat.com. Checkout the guides listed below to jailbreak iOS 4.0 on iPhone 3Gs, 3G and iPod Touch 3G and iPod Touch 2G.


All the iOS 4.0 firmware jailbreak guides are listed under the concerned devices. Scroll down to your iDevice and follow the links listed under it to jailbreak your iDevice running iOS 4 firmware.

Jailbreak iPhone 4

Jailbreak iPhone 3GS

You can jailbreak iPhone 3GS iOS 4 firmware with PwnageTool, Sn0wBreeze. In order to do so, follow the step by step guide:

Jailbreak iPhone 3G

You can jailbreak iPhone 3G iOS 4 firmware final with PwnageTool, Sn0wBreeze and RedSn0w 0.9.5b5. In order to do so, follow the step by step guide:

Jailbreak iPod Touch 3G

Jailbreak iPod Touch 2G

You can jailbreak iPod Touch 2G iOS 4 firmware final with PwnageTool, Sn0wBreeze and RedSn0w 0.9.5b5. In order to do so, follow the step by step guide:

***We’ll update this post as soon as more jailbreak tools are updated to jailbreak iOS 4 firmware.***

Now that you’ve jailbroken your iPhone. If you want to unlock it now, you can find iPhone unlock at iOS 4.0 guides here:

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72 comments… add one
Jumpuy June 20, 2010, 11:24 pm

Thanks for arranging iOS 4.0 jailbreak guides for us,thank you guys,You Rock!

sha87 June 21, 2010, 11:23 pm

u cant jailbreak the official ios 4 with these jailbreaks…guess we have to wait for an update from redsnow

aqkhana2002 June 22, 2010, 9:27 am

i just did it, firmware 4.0 release today in australia and its working .. i jailbreak my iphone 3g with latest modem

aqkhana2002 June 22, 2010, 9:26 am

well i just jail break my iphone 3g with firmware 4.0 which is release today in australia. having modem latest one.

MitchB17 July 11, 2010, 4:27 am

When will the jailbreak for the ipod touch 3G be coming out?

taewee July 14, 2010, 6:34 pm

I need the jailbreak for Ipod Touch 3G too. appreciated

Joey_Pham July 15, 2010, 7:09 pm

I can’t jailbreak my iPhone 3gs firmware iOS4

iPhoneHeat July 16, 2010, 1:13 am

Wait for the Spirit jailbreak update

Joey_Pham July 16, 2010, 2:22 am

ok, thank you for your information 😀

David August 11, 2010, 11:54 am

My3GS iphone is now at 3.1.3 jailbroken with spirit. I have saved my blob for 3.1.3 and 4.0.1 locally and @ cydia.

How do I proceed further from this point if I want to get it to the latest 4.0.1 jailbreak.
Read that snowbreeze does not support if it is spirit broken

Can I just connect to itune and update the official 4.0.1 FW and later use jailbreakme from comex?
Read somewhere that I also need to install ultrasn0w from Cydia (repo666.ultrasn0w.com) but not sure the resaon for this?

Hope my load of apps like winterboard, backgrounder, sbsettings etc do not screw. Will it?

Suneel May 19, 2011, 10:31 am


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