How to Jailbreak Your iPhone 4 Using RedSn0w (Mac) [5.0]

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Posted October 13, 2011 at 3:30am by iClarified

These are instructions on how to jailbreak your iPhone 4 on the 5.0 firmware using RedSn0w for Mac.

This procedure will cause you to upgrade your baseband potentially ruining your chances for an unlock. Please wait until we have posted a tutorial on how to update to iOS 5 using a custom ipsw if you need an unlock. The jailbreak is also tethered which means you will need to connect your device to the computer each time you reboot. Finally, it may be prudent to save your SHSH Blobs by following this tutorial before continuing.

If you want to jailbreak a lower firmware version you can find the appropriate tutorial here.

Step One
Create a folder on your desktop called Pwnage

Download RedSn0w 0.9.9b5 from here and place it in the Pwnage folder. Likewise, download the 5.0 firmware from here and place it in the Pwnage folder. (Note: you do not need to download the 5.0 firmware if you are already on iOS 5.0)

Extract the RedSn0w zip file by double clicking it.

How to Jailbreak Your iPhone 4 Using RedSn0w (Mac) [5.0]

Step Two: (You can skip this step if iOS 5 is already installed on your device)
Connect your iPhone to the computer and launch iTunes.

Select your iPhone from the list of devices on the left. Now hold down Option and click the Restore button. Restore is preferred as it won't create any wasted space on your iPhone.

Navigate to the Pwnage folder on your desktop and select the 5.0 firmware ipsw. Click the Choose button to continue.

iTunes will now update your iPhone to the new firmware.

Step Three
Launch the redsn0w application from the redsn0w folder we extracted earlier.

Step Four
Once RedSn0w opens click the Jailbreak button

Step Five
Plug your iPhone into the computer and make sure its OFF then click the Next button

Step Six
RedSn0w will now guide you through the steps to get into DFU mode. You can find more help with DFU mode here

Hold down both the Home button and the Power button for 10 seconds.

Release the Power button and continue holding the Home button until RedSn0w detects the device.

Step Seven
Your iPhone will now reboot

Step Eight
RedSn0w will now prepare the jailbreak data.

Step Nine
Select Cydia from the list of options and click Next.

Step Ten
Your iPhone will now be rebooted again and RedSn0w will begin uploading the new RAM Disk and Kernel.

Step Eleven
Once this is complete you will be notified that RedSn0w is done. When your iPhone finishes rebooting (5 minutes or so) it will be jailbroken with Cydia on the SpringBoard.

BOOT TETHERED
Once you have jailbroken you will need to rerun redsn0w to boot tethered.

Step One
From the main RedSn0w menu click the Extras button.

Step Two
Select Just boot from the Extras menu to just boot tethered.

*As usual a big thanks to the iPhone Dev-Team and Geohot for their hard work and contribution to the iPhone community.

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Adriano Martins - November 27, 2011 at 10:55am

Hey, I have my iPhone 4 GSM on 4.3.5 with Gevey, I want to put it on 5.0 (without jailbreak) but I can't do it like in the tutorial. iTunes gives me the "not ilegible" message or anther 1XXX error. I've tried downloading from different sources, using Tinyumbrella, different versions of RedSn0w, updating iTunes from 10.5.0 to 10.5.1... everything but I just can't. Any suggestions?

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Adriano Martins - November 27, 2011 at 10:57am

Forgot to say I'm on 04.10.01

rs6er - December 16, 2011 at 1:43pm

Use tinyumbrella and uncheck "Set hosts to Cydia on exit."

Adriano Martins - December 16, 2011 at 2:07pm

Done that at the first time but didn't work :\

rs6er - October 26, 2011 at 3:00pm

I upgraded to IOS 5.0 keeping my baseband 0f 4.10.? and unlocked using Redsn0w. I downloaded a program from Cydia. When installing, the phone never turned back on. It got stuck with the Apple logo on. I attempted to use TinyUmbrella to get it out of restore state. That didn't work, so I tried to restore in iTunes using the custom ispw that I had previously upgraded to 5.O on. I received an error message (1600) that my phone could not be restored. I attempted to jailbreak and install Cydia again. It went through all the steps and said it was done, but I am stuck with a black screen with a bunch of steps ending on :Applem2ScalerCSCDriver:Added framebuffer device: AppleCLCD id: c7da5000 with the curser on the next line. How can I get my phone working again?

ezze - April 29, 2012 at 11:19am

same problem..anyone help pleasee...

CRF450 - October 21, 2011 at 3:09am

I seem to be striking out. I jail broke my phone with the latest version of redsn0w and I downloaded an SMS tone in Cydia and when it rebooted it put me into safe mode. I tried exiting safe mode, which put me right back in it. I tried re-jailbreaking and got the same result. I even tried restoring my phone and iTunes gave me an error and left me still in safe mode. I am at a total loss. Please help if you can

rs6er - December 16, 2011 at 1:33pm

By safe mode, do you mean DFU? If you only get as far as the Apple logo, use redsn0w and click "Just Boot."

ben a. - October 20, 2011 at 11:26pm

will this with the iphone 4s???

CRF450 - October 17, 2011 at 7:52pm

I downloaded an SMS tone in Cydia and on the reboot (which I did tethered) it put my phone in safe mode and I cant get out of it. PLEASE HELP!

unikkatil - October 18, 2011 at 3:05am

did you try the last step "just boot"?

CRF450 - October 18, 2011 at 3:20am

Yes, I've done that twice. Any other suggestions.

DazexONE - October 18, 2011 at 1:27pm

If you find yourself in safe mode, just tap on the "safe mode" text at the top of you phone. You should be given a choice to reboot your phone. You can try jailbeaking again. They released the a new RedSn0w yesteday, so perhaps it will work better for you. You can also go watch the step by step video I made: http://www.hacksmods.com/2011/10/iphone-4-ios-5-jailbreaking-using-redsnow/

CRF450 - October 19, 2011 at 6:19am

I seem to be striking out. I tried exiting safe mode, which put me right back in it. I tried re-jailbreaking and got the same result. I even tried restoring my phone and iTunes gave me an error and left me still in safe mode. I am at a total loss. Please help if you can.

Kwynn - October 15, 2011 at 7:05am

Issues after jailbreak: Can't connect to Youtube, Push Notifications keep popping up for every app, some apps from 4.0+ won't work.

DazexONE - October 18, 2011 at 1:29pm

That's odd. It works fine for me. Try a tethered boot again to see if it clears up your issue. Many people forget to do this after the jailbreak. Otherwise, try jailbreaking again with the new version of RedSn0w that was just release. The notes said you can rejailbreak on top of the existing jailbreak.

unikkatil - October 14, 2011 at 1:06pm

anyone know about the windows version when will be relased?

xavier - October 14, 2011 at 11:28pm

first of all this doesn't of jailbroken all my phones this way before and it has worked in the past its too took slow on countdown

Arinya - October 15, 2011 at 2:14am

So I was able to Jailbreak but when I installed Cyntact or SBS Settings and I need to reboot my device, it gets stuck on the boot screen..halp!!!

unikkatil - October 15, 2011 at 3:44am

check the last step and do just boot tetheret right now

Arinya - October 15, 2011 at 6:09pm

Do I just plug it in? While it's in the boot screen?

unikkatil - October 15, 2011 at 6:29pm

Yes just plug it in and do just noir tetheret

unikkatil - October 15, 2011 at 6:31pm

Just boot tetheret i meent sry^^

Arinya - October 16, 2011 at 3:25am

I'll give that a try.

John - October 14, 2011 at 11:56am

Hey! I jailbreaked and installed Cydia with no problems at all. However, I'm stuck in Safe Mode. I haven't installed anything in Cydia yet to cause these problems. Anyone with similar problems?

CRF450 - October 17, 2011 at 7:49pm

I have the same problem. I downloaded a SMS tone in Cydia and on the reboot (which I did tethered) it put my phone in safe mode and I cant get out of it. PLEASE HELP US!

rs6er - December 16, 2011 at 1:45pm

Use redsn0w to Just Boot.

daryoon - October 14, 2011 at 4:34am

You are incorrect about what a tethered jailbreak is. The only time you need to tethered to a computer is when you reboot or shutdown your iPhone. I don't know about you, but I never need to do that in my day to day life. Tethered jailbreak works perfectly fine. Please go read up on it and understand it a bit more.

Adil Hidayat - October 19, 2011 at 4:55am

I know how u fell.....

raksasok - October 13, 2011 at 6:38pm

Hi what about if i want to upgrade baseband ? usually when we lunch redsn0w we have iPad baseband to choose but this time am see ( iPad baseband to choose) ? how can we unlock iPhone or update baseband

Gumby - October 13, 2011 at 1:59pm

same here some apps wont open...safari...mail...maps....just to mention a few

FG - October 13, 2011 at 4:33pm

same goes as mine may be the exploit is not been fix....

Frank - October 14, 2011 at 1:59am

you need to boot tethered. follow the instructions in the tutorial.

Wayne - October 14, 2011 at 2:00am

worked for me

FG - October 14, 2011 at 3:16pm

follow but after u restart yr phone the cydia not able to launch again and afffected the safari and email.... i this the jailbreak release is still not complete update... just wait for a stable version then jb agian :D

DazexONE - October 18, 2011 at 1:33pm

Works fine for me. Most people forget to do one final reboot after the jailbreak process has completed. You Need to do a Boot Tether one more time. Watch towards the end of this video for instructions: http://youtu.be/US3zDfG7VmE

HardRom - October 13, 2011 at 1:15pm

Give someone on the internet my Universal Device ID for $4? Seems legit. :|

Nam - July 29, 2011 at 3:58am

My ip4 world from 4.2 to 4.3.5 with this instruction but now it is no service. What can I do to fix this problem?

nir-hus - July 27, 2011 at 10:05pm

Why bother with this specific Jail break? Is there any important advantage over the Jail break on the current unthethered jailbreak? Nir Hus

help.. - July 27, 2011 at 6:55am

I need help downgrading off this beta 4, it seems like i bricked my phone..

iClarified_AC - July 28, 2011 at 4:44pm

first open up redsn0w and put ur iphone in pwned DFU mode, now open up tinyubrella and start the TSS server. Now download the 4.3.5 IPSW and shift click on itunes to restore. when you get the conncet to itunes you will need to install cydia under redsn0w 0.9.8b4. in order to install you MUST download the 4.3.4 IPSW and jailbreak/tethered boot with it, remeber NOT 4.3.5 IPSW, but 4.3.4 instead.

bftiedt - June 10, 2011 at 6:13pm

no new exploits were used. please read the dev teams site before you talk about thing that you obviously have no clue about. they are doing all this for free and you bash them , when what your bashing is just YOU not reading..

Frank - October 14, 2011 at 2:12am

this is an old exploit

Cracked Apps - June 10, 2011 at 1:40pm

does cracked app works?

yea - July 27, 2011 at 6:54am

Yes they do work, just make sure once you jailbreak you first install Installous, if you have the apps in itunes

Me2010 - June 10, 2011 at 1:05pm

Ran the jailbreak and booted it tethered. None of my apps would load except for cydia lol Had to restore. Thus the life of a jailbreaker.