Jailbreak iPhone 4 iOS 4.0.1 / 4 with JailbreakMe 2.0 - iPhoneHeat

Jailbreak iPhone 4 iOS 4.0.1 / 4 with JailbreakMe 2.0

JailbreakMe 2.0 is the new iPhone 4 jailbreak for iOS 4.0.1, 4.0 firmware. In this guide you’ll learn how to jailbreak iPhone 4 iOS 4.0.1 / 4 with JailbreakMe 2.0 jailbreak. Comex is the guy behind JailbreakMe 2.0 jailbreak for all iPhones, iPod Touches iOS 4.0.1 / 4.0 / 3.1.3 / 3.1.2 and iPad running iOS 3.2.1 / 3.2.

jailbreak iphone 4

Warning: Some of the users are facing FaceTime/MMS issues. The developer is working on it. (hearing a few reports of people rebooting a few times and it fixing facetime issues, perhaps this is something that will resolve itself) FaceTime and MMS issue has been addressed 🙂 For those who have already jailbroken iPhone 4 before the fix, follow the Fix linked Below.

JailbreakMe 2.0 is a userland (Web-based) jailbreak for all iDevices running firmware 3.1.2 up to 4.0.1. Lets jailbreak iPhone 4 4.0.1 / 4 firmware with JailbreakMe.

Disclaimer: This guide for educational purposes only. So, try it at your own risk. We can NOT be held responsible if anything goes wrong.

How to Jailbreak iPhone 4 iOS 4.0.1 / 4 with JailbreakMe

Step 1

Step 2

  • Make sure your iPhone is connected to the internet.
  • Open the Safari Browser from your iPhone 4 Springboard.
  • Input one of the following URLs:
    • http://jailbreakme.com
    • http://jailbreakme.modmyi.com/

Step 3

Now Slide to Jailbreak iPhone 4 on iOS 4.0.1 or 4.0 firmware.

jailbreak iphone 4 jailbreakme

  • First it will download the jailbreak data
  • then the jailbreak process will begin

jailbreak iphone 4 jailbreakmejailbreak iphone 4 jailbreakme

Once the process is complete, the following popup message will appear:

jailbreak iphone 4 jailbreakme

Hit the OK button and close Safari.

Voila! You’ve successfully jailbreak iPhone 4 with JailbreakMe userland jailbreak by Comex. Don’t forget to share your experience in the comments section below.

How to Unlock iPhone

UltraSn0w 1.0-1, the iPhone 4 unlock will be out soon after the testing on a few jailbroken iPhone 4 is complete is out now. iPhone 4, iPhone 3GS and 3G users can always use UltraSn0w:

How to: Unlock iPhone 4 with UltraSn0w 1.0-1

How to: unlock iPhone 3GS, 3G with UltraSn0w

Issues / Fixes

FaceTime / MMS Issue: How to Fix

Stuck at the purple screen:

  • Go to: Settings > Safari and clear Browser History, Cookies and Cache.
  • Then Reboot your iDevice.

Hanging on slide to unlock:

  • Put it in airplane mode then turn it off.


  • Reset Network Settings: Settings > General > Reset > Reset Network Settings

Also checkout:

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How to: Jailbreak iPad 2 4.3.3 with JailbreakMe 3.0
How to: Jailbreak iPhone 4, 3GS iOS 4.3.3 with JailbreakMe 3.0
How to: Jailbreak iPod Touch 4G, 3G iOS 4.3.3 with JailbreakMe 3.0
JailbreakMe 3.0 is Here!
JailbreakMe 3.0 to Jailbreak iOS 4.3 Untethered!
Jailbreakme 3.0 iPad 2 Jailbreak [Coming Soon]
JailbreakMe 3.0 Leaked!

131 comments… add one
ryan nguyen August 2, 2010, 7:27 am

this is so cool, but they need to work on the facebook and sms though. THANK ANYWAY :))))))

neubit August 2, 2010, 7:41 am

Just jailbroke 2 3gs 16gb iphones with new bootroms, everything was smooth, cydia installed, the carrier was unlocked via ultrasn0w 0.93 So far haven’t found any issues although haven’t tried to mms or use facebook just yet

Gadget News August 2, 2010, 8:01 am

Thanks, It worked great.

niti August 2, 2010, 9:21 pm

worked perfect. ADDED cydia to home screen.

ryan nguyen August 2, 2010, 9:27 am

can I fix the turn on screen:( if you reboot the iphone you will see a mark on the right hand corner any idea how I can fix this thank 🙁

Tal August 4, 2010, 8:47 am


Not only you. All the users after jailbreak and unlock including iphone 4.

If anyone know how to fix it, pls help to share.


Peter August 2, 2010, 10:40 am

Great great job guys!!! Only have an issue with mms. I can’t sent and receive, but the rest is awesome, simple, fast, professional. Thank You **** iPhone 3GS

liveordie August 2, 2010, 11:15 am

Whats wrong with Facebook mine work like normal?

huy57 August 2, 2010, 11:50 am

My iPhone 3G was never success on JailbreakMe 2.0 After step #3, it doesn’t show any downloading. Please help.

iPhoneHeat August 2, 2010, 12:29 pm

because the server is overloaded ATM.. keep trying

FlossN August 2, 2010, 11:50 am

I accidentally hit the cancel when the process started and now I can’t get it to reinstall. I got a msg saying it crashed please try again but when I do, all I get is the pulp screen. I tried to restore and it still don’t work.

invalid August 2, 2010, 11:55 am

Im stuck on the purple screen, ive tried rebooting several times and then tried to jailbreak again.

What can i do?

iPhoneHeat August 2, 2010, 12:29 pm

Server Overload

zeziust August 2, 2010, 12:51 pm

Im on purple screen yet… restarted the procedure several times. MAybe the server is overloaded. I dont know.

FlossN August 2, 2010, 12:48 pm

Please try http://jailbreakme.modmyi.com. Just solved stuck on purple screen. It worked great for me. Thx

djmac1003 August 3, 2010, 7:08 pm

works great!

Dhruv August 2, 2010, 1:44 pm

mi didnt jailbrake my iphone 3GS…help me some one

Dhruv August 2, 2010, 1:45 pm

i have no official sim card or phonebookcard now what can i do????

ijonk August 5, 2010, 6:59 pm

so do i,,,i have no official sim card or phonebookcard now what can i do??
i’m in indonesia,,please help me!!

abdulaziz alhammadi August 2, 2010, 2:06 pm

it’s not working with me ??

pls i need the jailbreak

my iphone is 3gs old bootroom not open

Neubit August 2, 2010, 3:44 pm

Jailbroke an iphone 4 on 4.0.1 with the new method, after resetting all data and settings via the control panel the phone would not boot anymore, have to do a resotre in itunes via DFU mode 🙁

geekivan August 3, 2010, 6:11 pm

It happened to me too, exactly the same thing. Now I’m afraid to do it again. Will they make it work soon?????

wielbark August 2, 2010, 4:50 pm

work perfect just please give us unlock .thanks very much guys good work
ps just one thing my screan dont show that cydia is instaled but i have cydia and working good

mdzago August 2, 2010, 8:03 pm

I’ve a 3GS 3.1.2 jailbroken and unlocked with BlachRa1n. May I update to 4.0.1 via iTunes and then use wi-fi to jailbrake and then unlock? After itunes update to 4.0.1 my phone wi-fi will work?(no need for activation?)

iPhoneHeat August 2, 2010, 9:28 pm

Did you read the NOTE?

mdzago August 3, 2010, 12:12 am

Yes, I saw the note, but my doubt is if I update firmware using iTunes in my 3GS I’ll need to activate it again, and if wi-fi also will work to use jailbreakme. Just this… 🙂

ijonk August 5, 2010, 7:09 pm

can u updated 4.0.1 and jailbreak your 3GS??
i have 3GS 3.13 and i want to update 4.0.1 firmware,,,
please tell me,,,thanks

al127 August 2, 2010, 9:12 pm

YAY !!! it worked on my 3gs 4.08A293 05.13.04 MC model
Ive been dying waiting for this !!
Thank you so much !!!

jolo August 2, 2010, 10:37 pm

I can not download the file no working please
Oops it looks like the installer crashed last time you tried to jailbreak it might work if you try again,,,,,,

robB August 2, 2010, 11:25 pm

The jailbreak was easy and quick, very nice job guys. Ive got some issues with it though. i have a 3Gs on 4.0.1, anything i download from cydia doesn’t work, it either messes up my springboard, or seemingly has no effect. for instance, five icon dock, five rows, shrink, ect ect and the biggest problem i have is when i try to download winterboard. are these issues just because the programs have not been updated to run on 4.0.1 yet?

taogenix August 3, 2010, 2:33 am

my 3gs running 4.0.1 also had a bit trouble after the jb, i deleted some apps including winterboard, five rows/dock etc. terminal seems not to be working too. but i have shrink and it works perfectly

robB August 3, 2010, 4:37 am

yeah, i think the apps just need to be updated to run on 4.0, i see some apps give warning that they dont run on it yet

bboy August 3, 2010, 12:31 am

Just have one question pls is it compulsory to restore to the Official firmware if you already on the official firmware 4.0 iPhone 4

iPhoneHeat August 3, 2010, 12:54 am


bigwly August 3, 2010, 4:01 am

Im getting a bad gatewat error when i load cydia? is this just the server being overload?

aozdemir August 3, 2010, 5:16 am

Thanks guys it worked great, I appreciate it

Lexus August 3, 2010, 7:07 am

Guys this works like a charm! Its so seamless even a 5 yr old kid can follow the steps. Great stuff!!!

Zerotronic August 3, 2010, 9:00 pm

Just tried this on newly bought 3Gs with already installed IOs4, with new bootrom (359.3.2), WITHOUT SHSH blobs on file and it worked like a charm. Untethered jailbreak 😀

If you just bought your 3gs, have a new bootrom and upgraded to IOs4 without keeping shsh blobs on file then this will work perfectly for you.

Comex, you are a god mate :D:D:D:D:D thank u thank u thank u

versetti August 3, 2010, 9:12 pm

all I can say this is super solution

zoey August 3, 2010, 11:20 pm

thankz alot dude. salamat

newmind August 4, 2010, 1:34 am

that is great news now if verizon would get of their ass and get the iphone under contract that would be the greatest news since sliced bread. come on verizon move your ass

lastdon August 4, 2010, 2:23 am

guysi had the jailbreak on my iphone4 with the 4.0 then i decidedto update to 4.0.1 my cydia gone so i have been trying since yesterday night to reload jailbreak but it starts to download the first part then goes back to iphone home no cythia any ideas as why for so long i cant get it on my phone? please help kind of worried now because i need to unlock it when its available.

mamoudm August 4, 2010, 9:22 pm

i had the same problem…restore 4.0 instead of 4.1
jailbreak is ok

mohammadvinod August 4, 2010, 3:31 am

very good jaibreaking thanks,thanks,thanks…….

mohammadvinod August 4, 2010, 3:33 am

very good for 3gs neww boot rom thanks devolepers

Jho August 4, 2010, 7:52 am

I tried using the jailbreakme website and it doesn’t work for me. I have the iPhone 4 with software updated to 4.0.1 and even though it says it works for it, it doesn’t. It wont even let me slide the bar to jailbreak it. Anyone have solutions for that? I want to jailbreak it but looks like I may have to wait until they update it to jailbreak anything above a 4.0 software. I don’t think it works for software 4.0.1 at all so don’t update if you want to jailbreak ur phone

sowat99 August 4, 2010, 1:38 pm

@iphoneheat #iphoneheat mobileterminal is not compatible with iphone4 os4.0.1, i was suppose to change my root pass as soon as i jailbroke, i installed mobileterminal but unfortunately did not run. now my device is at risk with the default password. please give attention to this matter. hopefully it will be updated soon. thanks.

sowat99 August 4, 2010, 1:41 pm

@iphone_heat #iphone_heat mobileterminal is not compatible with iphone4 os4.0.1, i was suppose to change my root pass as soon as i jailbroke, i installed mobileterminal but unfortunately did not run. now my device is at risk with the default password. please give attention to this matter. hopefully it will be updated soon. thanks.

Zerotronic August 4, 2010, 7:48 pm

Mobileterminal in Cydia is not working with ios4. but you can still download an unstable but working release here

then you can ssh it in your iphone at “/private/var/stash/Applications”. Make sure Terminal.app folder as well as every contained file and subfolder have {GROUP}admin:{OWNER}root and permissions [755]

I used that release to change my root pass

MINEFROZE August 4, 2010, 4:08 pm

Just did the jailbreak on my 3Gs and springboard keeps crashing!!! Everything I do causes apps to crash… if i go into search screen the whole phone crashes… HELP!!! PLS

ijonk August 5, 2010, 7:17 pm

where i install itune??

Zerotronic August 7, 2010, 11:07 pm
bleach_33 August 5, 2010, 8:55 pm

Just jailbroke and unlocked my 3gs with 4.0.1 with 5.13 bootrom. Using Comex for jailbreak and ultrasn0w .93 for the unlock. Thanks to all those who can learn to do this stuff ha ha

Hezha Sindi August 6, 2010, 5:43 am

im stuck on emergency call and my iphone 3gs (oldbootroom) firmware 4.0.1 is not activated and i cant active it because i dont have the At&T simcard how can i get into the iphone and then jailbreak via Safari?

i_hate_2_wait_without_soln August 7, 2010, 1:27 am

the jailbreak procees was done perfectly, now i have the cidia, but the unlock is still updating, i am still waiting for 90 min, on the screen there is downloading packages and it’s complete, but the next page didn’t load???

i_hate_2_wait_without_soln August 7, 2010, 3:54 am

the problem was solved, i reboot the device, then i entered to cidia, it completed the update, then i installed ultrasn0w and nowe it is unlock,
really 10x a lot, my iphone had been locked for more than 5 months, since i updated it to 3.1.3, bcuz it’s of new bootrom and i diidnt save my shsh blobs, and now i unlock firmwar 4.0, 10x again..

Ganesh August 7, 2010, 4:43 pm


I’m using iPhone 3G i have updated to 4.0.1 & jailbreaked with “Jailbreakme” . I found that multi tasking is not enable….!

Can u say me how to enable it (or) any other tools to jailbreak to enable multi tasking…..?

Zerotronic August 7, 2010, 11:22 pm

Multitasking is not enabled by default on the 3G. You have to alter a plist file in your phone.

After you jailbreak your phone install OpenSSH an then SSH into your phone using your favorite program (i like winscp since i am on windows)
Then navigate to “/System/Library/CoreServices/SpringBoard.app/” folder in your phone and find a file called “N82AP.plist” and copy it in your computer. open it with a plist editor of your choice. Then find “multitasking” (without quotes) and then change the value below that to “” (again without quotes). If you can’t find that line then you can add it yourself. Then save the file and SSH it back into your phone overwriting the old one in the phone. Reboot your device and try clicking Home button twice and see what happens

There is a nice tutorial here with pictures to explain how it is done:


Gingi August 8, 2010, 6:17 am

After I selected Download, it said “Downloading…This might take a while”

The bar finished downloading and now it seems to be frozen. Any hints or suggestions as to what to do next?

Ganesh August 10, 2010, 1:17 am

Very good i have done jail breaking with “jailbreak me” after that i have syn some cracked files but its not installing….? what i have to do ? can u guide me? wat things i have to do ?

HA6206 August 12, 2010, 4:31 am

It Really Work Thanx

mesiko August 13, 2010, 1:27 pm

Jailbrake 3gs 4.0 with new bootroom.
Thanks to all.

firepol August 14, 2010, 1:16 pm

Somebody knows where the hell is the “make my life easier” button in Cydia? Just jailbroke my iphone following this guide. Then entered Cydia, as “Expert/Hacker” but I didn’t see any button or option with the “make my life easier”. This is damn important to backup your SHSH and to be able in the future to restore to 4.0.1 in case something goes wrong… thanks for sharing a solution for this.

freecaster117 August 14, 2010, 7:37 pm

this one is very clear and easy to use, i had i find out myself but it had been easy with this tutorial, nice job

qwertio August 15, 2010, 2:05 pm

very easy jailbreak. im using an ipod touch 3rd gen 32GB and it works well. thanks very much.. keep up the good work..

sweedude4u August 19, 2010, 9:14 am

hi aneone plz help me i have got new iphone4 with firmware 4.0.2 now i want to jailbreak it plz aneone can help me how to do it plz

fabro August 19, 2010, 9:16 pm

I have a Iphone 4 it work just great thanks so much guys

ak111 August 21, 2010, 12:15 pm

How do i get pushfix to work on my iphone 4.0.1 for yahoo messenger i have done almost everything possible but still doesnt work ???

juicyjuice August 24, 2010, 4:53 am

worked great! insanely simple for my iPhone 3gs (previously on 3.1.3 / new bootrom

kadilaxs August 26, 2010, 2:31 am


zezius August 27, 2010, 2:40 am

Im trying to access the page:

And the page is out. Not exists.

What’s happening? Does anyone can help me pls?

Thank you

wandy November 22, 2010, 11:21 am

just try another one link…
it work for me on iphone 4

ready2fly August 29, 2010, 7:53 pm

After jailbreaking my iphone 4 (4.0.1), through jailbreakme.com, itunes no longer sync’s anything. When i try syncing, it goes through the usual backup and then tries to sync but then just completes half way through without syncing anything.

Anyone else facing the same problem or know how to fix this issue?


vici September 6, 2010, 4:02 pm

how did you do that i need help i cant get on to firmware 4.0.1 can you help me please x

xlaoxlng September 3, 2010, 9:41 pm

my phone stuck at the apple logo after a reboot

nain February 2, 2011, 2:38 pm

I did everything rite and installed ultrasnow through cydia. but after rebooting the phone it got stuck on the apple logo forever.
What do i do!??

Marcelo September 11, 2010, 9:26 pm

If some1 got stuck on purplr screen u can put on ur WiFi DNSs the then try again. Its simple

kitzai September 18, 2010, 11:26 pm

thanks….boss i will support !!!

kitzai September 18, 2010, 11:31 pm

thanks boss!ios 4.1 can jailbreak right now???

nathyb September 21, 2010, 7:38 am

I tried this running iphone 3gs on 4.0.1 and it says my version is too new ?? can anyone help me please 🙂

feby October 6, 2010, 3:03 pm

When could I expect an unlock for iOS 4.0.2?

mutuelle May 12, 2011, 3:38 pm

Very interesting website.

mutuelle senior May 13, 2011, 7:51 pm

Very nice information. Keep sharing

maillot de bain May 18, 2011, 8:18 pm

Nice blog !!! thank you it’s very important

iPad 2 Bugs May 22, 2011, 7:39 am

Thankyou for this fix, I am working on bug for the ipad 2 myself, hoping to help many with fixes as you have, cheers!

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