Do a complete backup of your device via iTunes before driving. You can backup your Cydia packages through APTBackup (found in Cydia).
Requirements & Compatibility 
Download Tool
Download iOS
Compatible iDevices iPhone 4 | iPhone 3GS | iPhone 3G | iPad (1) Wi-Fi| iPad (1) Wi-Fi + 3G| iPod 3G 4G
If you need your iPhone Unlocked - Do not run this Jailbreak !
iPhone 4 Your iDevice Must be on iOS 4.3.3
Estimated Finish Time 10 to 20 Minutes
Download everything and place it all on the desktop
Jailbreak Guide Begins:
Step-: 1.
- Launch redsn0w
- click Browse.
- Now Find the 4.3.3 iOS file you downloded earlier & click open.
Step 2. After Selecting. ipsw file – click Next.
Step3. It will start a rapid process of patching the kernel, after which you will be presented with several options. Select Install Cydia and move on.
Step 4.
- We now have to put your device into DFU MODE.
- Review How to go into DFU Mode before clicking next .
- Video link below
- Make sure your device is connected to the computer, & Turned OFF - Now click Next.
Redsn0w Will walk you through a few steps to get Your iDevice into DFU Mode
RedSn0w will now guide you through the steps to get into DFU mode.
[Step by Step Video To Put your device into DFU Mode]
Step 1 .
- Hold down the power Button for 2 Seconds
Step 2.
- Continue to hold the Power button
- Now also hold the Home button
- Hold both buttons together for 10 seconds.
Step 3.
- After 10 seconds of holding both buttons.
- Release the Power button and continue holding the Home button until RedSn0w detects your iDevice.
Once your iDevice is in DFU mode - Redsn0w will begin jailbreaking your iDevice.
- Once you reach the Step below – You can relax !
- Next your iPhone will reboot (Takes approx 5 mins to 7 mins)
- After reboot find the Cydia icon on the Springboard of your iPhone
You can ask any questions via the comments
Thanks for the above process, it worked in my i Phone 4
Hi after jailbreaking did the phone got locked??? I want to have cydia on my phone but am kinda worried what if it gets locked again. Pls advise
If you depend on Carrier Unlock – Please Please – do not attempt this Jailbreak.
You need to use Pwnage tool to jailbreak your iPhone safely without updating the baseband..
how do i fix the band? if i have 4.10.01 am i able to jail break it?
i have also version 4.3.3(8j2) modem firmware 04.10.01 model mc318ll iam using gavy turbo sim than iam getting network problam every day iam using process call on 112 and do airplane mode after that i got network but it lost network many time in a day there is any permanent solution???????
Super it worked great on my iPhone 3GS 4.3.3 8J2.
The Redsn0w 0.9.6rc15 link above is broken, because they have released a new version with bug fixes! http://blog.iphone-dev.org/
Thnx for the link ciril
dis all steps now stuck with apple logo and nothing can't even reset any ideas
hold home and power button until the phone goes into recovery mode, once in recovery mode you should restore the device with iTunes and attempt to jailbreak again.
Hi,
I've done all the steps, jailbreak went well, the walking pineaple showed up, the shell program got excecuted, but, the IPhone get stuck on reboot, it keeps showinf the apple icon without going further.
Tryed to recover by iTunes but i have an error form iTunes saiyng that "Can't be restored because of incompatible microprogram folder"
Please need help i got no Phone and i'm Stuck.
My phone's baseband is 4.10.1 with version 4.3.3(8J2). Which baseband is required to unlock iPhone 4G? Do we need to change 4.10.1 to other baseband? Please help.
hmm not quite sure but i don't think there is an unlock available for 4.10.1 Baseband.
According to Dev Team the Ultrasn0w can only unlock "iPhone 4 baseband 01.59.00" …
But i do believe an unlock is in the works for 4.10.1…. http://www.iphoneheat.com/2011/03/unlock-for-ipho…
hi my phone is ios 4.3.3 (8j2 and the modem firmware is 04.10.01 and it is iphone 4 16 gb. will the above mentioned jailbreak work on my iphone??
I have downloaded the redsn0w 18 and ISO 4.3.3 but when I lunched the redsn0w and when I browse to get the ipsw file it couldnot read it and couldnot find it, could u please tell me why and what went wrong
thanks
hey i got iphone 4 4.3.3 and modem 4.10.1, I am unable to get carrier unlocked, do you know of a way ?
there 2 -3 steps first reboot ur iphone, it will show single line of network at that time you have to dial 112 exactly after 2 sec of dialing end the call, turn the phone on flight mode for 2 sec then after 2 sec turn off the flight mode it will show no service, again turn on flight mode n then turn off the carrier will get..
there 2 -3 steps first reboot ur iphone, it will show single line of network at that time you have to dial 112 exactly after 2 sec of dialing end the call, turn the phone on flight mode for 2 sec then after 2 sec turn off the flight mode it will show no service, again turn on flight mode n then turn off the carrier will get..it work on my iphone
THANX ALOT WORKD GRET FOR ME AND I HAVE
4.3.3 (8j2 and the modem firmware is 04.10.01 and it is iphone 4 16 gb
my modem firmware is 1.0.05, and what do you mean "if you require an unlock"? will this method work for me? I have an iphone 4 running iOS 4.3.3.
on verizon as well
Means if you want your iPhone unlocked .. you should not follow this tutorial…
Hi,
I have factory unlocked i phone 4 with BB 04.10.01. If i jail break, will the phonbe get locked?
Is this thered or untherderd jailbreak and whats the differnce between (8J2) 4.3.3
i have installed the "cydia" but the installer does not appear in my phone.
What i have to do ?
hi
i use i phone 4 version 4.3.5 dose it work jail break 4.3.3
Hi, would there be a problem if i did this to my factory unlock iphone4?
i have jailbroken my iPhone and everything is fine accept the cydia icon is blank and doesn’t open also my safari browser doesn’t open
Hi i am using iPhone 4 which is running on ios 4.3.3. i am using Gevey ultra sim.It works perfectly. Then i upgrade it to ios 5.1.1 and jailbreak it with latest version of redsnow. After that i put my simcard with Gevey ultra sim and follow the instruction shown in the iphone to activate it. I have done every thing it says but at last it does not show the network. It shows “No Service”.
Please any one help me to get out of this problem. Or do i have to use another Gevey sim for my iphone4 running in ios 5.1.1.
Thank You
hi my iPhone 4 was ios 4.3.3 and i did update with 6.0 it is lock phone right its stucked in starting mode i have no wifi connection and no sim card how can i get back or how can i restore old version ios 4.3.3
How do you remove this jailbreak? My computer doesn’t recognize my device.. It does not even show up in my USB ports. I tried it with different Pc’s and different cables.. Stuck..