
We had just published our step-by-step guide to jailbreak iOS 4.0.2 using Redsn0w for iPhone 3G for Mac users. This guide is for Windows users.
Redsn0w is a popular jailbreaking tool developed by the iPhone Dev Team for Mac and Windows users.
RedSn0w 0.9.5 allows iPhone 3G users to jailbreak iOS 4.0.2 that was released earlier in the week.
Here are some points to note before you proceed.
- Please note that jailbreaking your iPhone may void its warranty and hence proceed with caution.
- Do not forget to backup your iPhone before you proceed. You can refer to this post for instructions on how to backup your iPhone 3G
- After the jailbreaking process is complete, do not forget to checkout our article on tips to keep your iPhone secure. Also, remember to change the password of your jailbroken iPhone.
- Please note that this guide is only meant for Windows users. Mac users can checkout this step-by-step guide.
- Redsn0w will NOT unlock your iPhone 3G. You can use Ultrasn0w to unlock your iPhone 3G after you have successfully updated and jailbroken iOS 4, iOS 4.0.1.
- Please ensure you are running iTunes 9.2 or later.
- Redsn0w does not work on iPhone 3GS or iPhone 4.
Step 1: Download the latest release of Redsn0w by clicking here and save the application in a folder named "Pwnage" on your desktop.
Step 2: Click here to download the latest iOS 4.0.2 firmware file (iPhone1,2_4.0.2_8A400_Restore.ipsw) for iPhone 3G and save it in the same folder. Click here to also download iOS 4 firmware file (iPhone1,2_4.0_8A293_Restore.ipsw).
Step 3: Double click the Redsn0w zip file and extract the application to the Pwnage folder

Step 4: Connect your iPhone 3G to the computer, which should automatically launch iTunes.
Step 5: From the 'Devices' section on the left pane of iTunes, select your iPhone 3G device. Now, hold the Shift key down and click the 'Restore' button.

Step 6: Navigate to the Pwnage folder on the desktop and select the downloaded iOS 4.0.2 firmware file (iPhone1,2_4.0.2_8A400_Restore.ipsw). Click on the 'Choose' button to let iTunes update your iPhone with the required firmware.
Step 7: Navigate back to the Pwnage folder and launch the Redsn0w application.

Step 8: You will be asked to select the corresponding IPSW file. Click on the Browse button and select the iOS 4.0 firmware file (iPhone1,2_4.0_8A293_Restore.ipsw). Note: You need to use the iOS 4.0 firmware file in this step. If you use iOS 4.0.2 file then you will get the "Unable to recognize specified IPSW" error message.

Step 9: Redsn0w will verify the firmware file and inform you if it has successfully identified it. Click on 'Next' to proceed.

Step 10: Redsn0w will now start preparing the jailbreak data.
Step 11: You will now be prompted to select the jailbreak options you would like. Check the following options. A few of these may have already been selected by default.
- Install Cydia
- Enable Multitasking
- Enable Homescreen Wallpaper
- Enable Battery percentage

'Verbose boot' offers detailed booting information to users. This may not be necessary for common users and need not be selected. You may also choose to not check 'Custom boot logo' and 'Custom recovery logo' options if you prefer the default icons. However, if you wish to provide your own boot and recovery logos, do remember that these images have to be PNG files in RGB or grayscale mode and inside 320x480 resolution.
Step 12: Select 'Next' to continue. You will now be prompted to switch OFF your iPhone 3G and plug it to the computer. Follow the instructions and click on 'Next' to move to the next screen:

Step 13: You will now need to put your iPhone 3G into the DFU mode. Redsn0w will take you through the necessary steps:
(a) Hold the Power button on iPhone 3G down for 2 seconds:

(b) Now simultaneously hold the iPhone button and keep the two buttons pressed for 10 seconds:

(c) Now release the Power button while keeping the Home button depressed. Redsn0w will now identify the device:

Step 14: Your iPhone 3G should reboot now.
Step 15: Redsn0w will now begin uploading the new RAM disk and kernel

Step 16: You will now be notified once the jailbreaking process is complete. Click on the 'Finish' button to exit the application.

Step 17: Your iPhone will reboot once again (which could take approximately 5 minutes). After it has rebooted, your iPhone 3G should be successfully jailbroken. You should find Cydia jailbreak app on your iPhone 3G's home screen.
Hope this helped. Please don't forget to drop us a line to tell us how it goes.
I ran this exactly like it said too and it says my version is 4.0.1? Not .2 like it should be.
aaaaaaaaaaiphone
any difference in speed? should i upgrade from 3.1.3
to this on 3g ?
No I wouldnt upgrade, its slow on a 3g. I may go back. I also now have no service through ATT. Not sure why.
why nobody is happy being first or whatever third and stuff ?
((((
bored, saturday at work shite
unlo0ck it , try
or do reset for network settings
gr88888
what is great ?
)
Time to whack a gnome and unlock this puppy.
Tell Jobby boy to go suck a knob.
They fixed it but the link in this procedure was 4.0.1 not .2. I also forgot to activate through itunes before jailbreaking which is why I didnt have service I think.
can anyone tell me why use red snow when jailbreak me is so easy. ime not knocking it just wondered
how long does it take to reboot and what do i do if it never does?
Jailbrekme only can be if yr iphone doesn't stuck with emergency call. Redsnow can jailbreak and hactivate iphone.
Got the Iphone 4, so figured why not jailbreak the 3G. The instructions were EASY to follow and all things worked fine. Now I just have to figure out what I can do with a Jailbroken phone
Does anyone know if tethering works after this jailbreak?
jus done it and it worked thnx alot for ur help m8
O.O that was fast!!! thank yo but i have 3G S, so i guess i will just wait for now
and not update to 4.0.2.
because the exploit that jailbreakme uses to jailbreak you iDevice got patched on 4.0.2 u fvcking idiot…
Thank You It Works
Has anyone tried to unlock this version?
i thought this forum was to learn people and get help not to be swore at. didnt you once need to ask questions and learn off helpfull people. i ques your one of the people that knows it all and never needs to ask questions.by the way cleaver cloggs its its YOUR. NOT YOU. just thought i would help you out there.see we all need help retard.
and yes i know i have made spleeing misstakes just for your to coment on i dont want you to feel left ouy pmsfl.
Same question from Panda… Has anyone tried to unlock this new version iOS 4.0.2?
Try to unlock and see what happens.
YES IT WORKS
Hello, trying to jailbreak. Currently have a broken HOME button, so not sure if I can proceed with this jailbreak. Any ideas???
IT TAKES 5 MINUTES AND IF IT GET STUCK HOLD POWER AND HOME BUTTON TOGETHER IT WILL TAKE U OFF THE SCREEN AND POWER ON AGAIN AND TRY DOING IT AND ONE MORE THING ITS ONLY FOR IPHONE 3G (NON MC ) MODEL GOOD LUCK
U CANNOT UNLOCK IT WITH REDSNOW U HAVE TO FIX YOUR HOME BUTTON CHECK YOUR PHONE IF IS UNDER WARRENTY RESTORE YOUR PHONE AND TAKE TO APPLE
SORRY I MEAN JB
you have to be on 4.0.1 and go in safari to jailbreakme.com to do this install the PDF patch in cydia and install firmware 4.0.2 app to spoof it
My iPhone doesn't reboot after Step 13. The application gets stuck on "Waiting for reboot". What am I doing wrong?
Okay thanks Mk.
Awesome it works jailbroken with 4.0.2 and unlocked wit ultrasnow. Almost too easy. I dont find it any slower or buggier.
Thanks heaps
o wow a typo & now im dumb?? you said it your self that this forum is to learn, so maybe if your ignorant ass woukd learn how to read you would have known that the only reason apple released 4.0.2 was to patch jailbreakme. anyways im done, your newbie ass. reply all you want, loser.
now u can look at porn
yes unlock will work as the baseband hasnt changed.
Its like like with 3.1.2 and 3.1.3 its just a software update to fix the PDF exploit.
hi i hav iphone 3g its jailbroken and is runnin 3.0.1 i want to upgrade my Fw.
what Fw should i upgrade to?
do i have to restore to an orig Fw first?
i tried upgrading to 4.0 but got error 3194 during apple verification.
whats the best way to go ?
I did exactly by the steps and my iPhone stuck with "plug in Itunes" Jailbreak failed and my phone locked now
((
when to launch jb tool for 3gs
Made some adjustments and everything is working
Hi.
Thanks for the instructions. Followed them to the letter, but also have my 3GS sitting at the "waiting for reboot". I've left it now for 15 mins and also followed your instructions once already to manually restart it witht the home and power button.
Is there anything else i can try?
Thanks in advance,
DCKT
I am stuck at "waiting for reboot" and my iphone is off, could I start it?
Thanks DrunkMunki for the information… Cheers…
May i know what version of windows os your computer has?
tahnkyou so much been trying for ages to do this and finally a way that works thanks:)
I got the same problem as you, it doesn't happening anything after step 13. It just says waiting for reboot
Hen, How'd you get past step 13 where it seems to be hanging for some of us???
HELP!!! Really need to get back into the phone.
This guide is only for iPhone 3G users.
Oh… Can you point me in the right direct for 3GS then??? DOH!
There is currently no method to jailbreak iPhone 3GS else I would have given it.
One option would be to downgrade to iOS 4.0.1 and jailbreak using Jailbreakme.