Jailbreak iOS 4.0.1 Firmware (iPhone 4, 3GS, 3G, iPod Touch 3G, 2G) - iPhoneHeat

Jailbreak iOS 4.0.1 Firmware (iPhone 4, 3GS, 3G, iPod Touch 3G, 2G)

All guide to jailbreak iOS 4.0.1 firmware on iPhone 4, iPhone 3GS, 3G and iPod Touch 3G, 2G (MC, non-MC). JailbreakMe 2.0, the new userland jailbreak by Comex can jailbreak 4.0.1 firmware on all iPhones and iPod Touches including New BootRom devices.
jailbreak ios 4.0.1

Jailbreak iOS 4.0.1 Firmware

Follow the Guides linked under your concerned device to jailbreak it with JailbreakMe 2.0.

Jailbreak iPhone 4

How to: jailbreak iPhone 4 iOS 4.0.1 with JailbreakMe

Jailbreak iPhone 3GS

How to: jailbreak iPhone 3GS iOS 4.0.1 with JailbreakMe

Jailbreak iPhone 3G

How to: jailbreak iPhone 3G iOS 4.0.1 with JailbreakMe

Jailbreak iPod Touch 3G

How to: Jailbreak iPod Touch 3G iOS 4.0.1 with JailbreakMe

Jailbreak iPod Touch 2G

How to: Jailbreak iPod Touch 2G iOS 4.0.1 with JailbreakMe

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26 comments… add one
aprild August 3, 2010, 12:59 am

I’ve been running an unlocked/jailbroken 2G-8Gb on os 3.1.2 forever… Will one of these work to jailbreak my phone again once I upgrade to iOS 4? Will iTunes even let me do that since my phone is a couple generations old?

Thanks in advance for any help!

Ninjamonkey2182 August 3, 2010, 8:44 am

I don’t think you can upgrade the 2g to osi 4.0

strat August 3, 2010, 9:10 am

i wouldn’t recommend upgrading to iOS4 on a 2G iPhone it will just make your phone REALLY slow!!

LexieP August 4, 2010, 3:16 pm

I’m in the same predicament. I’ve given my unlocked/ jailbroken iPhone 2G to my son, and I’m using a new unlocked iTouch instead. [I bought a Sony Ericsson phone.] But the applications I’ve bought keep on getting updated to OS4.0 standards, thus, some games I bought for the iPhone2G don’t work anymore.

strat August 3, 2010, 9:08 am

I was just wondering if anyone else is experiencing copy and paste problems within safari since jailbreakme.com jailbreak??

Shiva August 3, 2010, 10:07 am

Hi.. I’ve iphone 3gs IOS 4.0.1, which is never jailbroken. I tried with jailbreakme 2.0 but not working 4 me. the site http://jailbreakme.com and http://jailbreakme.modmyi.com both are not opening in my iphone. Other sites are working fine. I cleared safari cache, history and reset network settings. Stil nt working.. plz suggest me how to jailbreak. I did this procedure by putting sim card, is this any prob???

Steve Jobs August 3, 2010, 11:50 am

No, 3.1.3 for 2G is max. But remain unlocked to any GSM.

mimi August 3, 2010, 10:35 pm

its not working for me and i dont know why.

Zainal Anbideen August 4, 2010, 1:03 am

Dear All,
I did jailbreak and unlocked my iphone3gs iOS4.0.1 and I am trying to install install0us but it’s giving me error .
Help me out , please .
it said ” the following signatures were invalid: NODATA1 NOTADA2 & failed to fetch and error code(2).


Head Honcho August 4, 2010, 9:29 pm

I see that the phone must be actvated. Does that mean connected to a phone carrier or so that you can get get to wifi or internet on it? Mine and get to wifi but I did not carrier activate it.

danny August 4, 2010, 11:09 pm

Hi, anybody has a problem like mine. After jailbreak or update, it seem like my iphone 4 ios 4.0.1 battery burn faster. Even I put sleep mode overnight, the next morning I check battery half emty. Before it burn 5%-10% the most; however, the last 2 days been burn fast. Any suggestion please.


Head Honcho August 5, 2010, 5:57 pm

Can save the SHSH blobs after the phone is jailbroken or must do it before?

Dhrumil August 6, 2010, 11:52 am

my 3gs can not activate in itunes …i try so meny times..i try with AT&T & phonebookcard..But still not activate……. how can i jailbrake ? HELP ME PLEASE…

Mini Wheat August 6, 2010, 6:46 pm


I have a 3gs iphone with 4.0.1 firmware with a 5.13.04 baseband. I believe I have old bootrom as well. Can I use Jailbreakme on my iphone to jailbreak it? Or do I need to wait for another jailbreak to come out please help!


sha8210 August 15, 2010, 1:38 am

I jailbroke my iphone 3gs 3.1.3 using the spirit..so it got struk and now with this i can upgrade and jailbreak and unlock ..but my question is “Will my iphone gets into Emergency mode when i upgrade to 4.0.1″…Plzz help

sha8210 August 15, 2010, 1:39 am

its with new bootroom

nogatco August 20, 2010, 5:19 pm

Can any body help. i jailbroke my iphone 3gs 3.1.3 (new boot rom) with spirit jailbreak i was told i could upgrade the firmware with spirit2pwn but when i did this my phone shut down and wont start up its stuck on the black screen.ive tryed to restore useing itunes the screen turns white then goes off and i get error code 28 on itunes unable to restore please can somebody help thanks.

snow August 26, 2010, 6:49 am

i update mine iphone 3gs to 4.0.1 and jailbroken it..whenever i switch apps like whatsapp to twitter..it keep crashed..y?

Dev September 18, 2010, 11:14 pm

Has any one experiencing issues after jailbreaking and unlocking 3gs with ios 4.0.1 ? I have been seeing like iphone goes blank and often getting restarted automatically. Any ideas?

Dev October 5, 2010, 6:18 am

Any updates? Still having same issue.. happening twice or thrice a day 🙁

ho October 6, 2010, 7:12 pm

i had bought an iphone 4 with 4.0.2 ver. i want to downgrade to 4.0.1 ver , i had try lots of ways but still cant downgrade . pls help me with this problem tq

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