Jailbreak iOS 5 with RedSn0w - iPhoneHeat

Jailbreak iOS 5 with RedSn0w

Your detailed guide to jailbreak iOS 5 using RedSn0w jailbreak on iPhone 4, iPhone 3GS, iPad and iPod Touch 4G, 3G. MuscleNerd has confirmed that the current RedSn0w can jailbreak iOS 5 *tethered* on iPhone, iPad and iPod Touch.

jailbreak ios 5 redsn0w
For those who didn’t know, tethered jailbreak means you’ll have to plug in your device to your computer every time it reboots to boot it again into the jailbreak state. RedSn0w has a “Just Boot” option available in Redsn0w.


Step 1

Download the required files:

Step 2

Make sure you’ve installed iTunes 10.5 or later, then connect your iPhone, iPad or iPod Touch and backup your personal data before restoring to iOS 5.

Gevey SIM or UltraSn0w Unlockers, you need to preserve your baseband in order to unlock with UltraSn0w or Gevey SIM. Follow this guide to preserve iPhone baseband while updating to iOS 5 and then skip to Step 3 (avoid Stock firmware):

How to: Preserve iPhone 4, 3GS Baseband While Updating to iOS 5

Connect your iPhone/iPod Touch/iPad to iTunes 10.5 or later, hold down the Shift (Windows) or Alt/Option (Mac) key and hit the restore button on iTunes and select the downloaded iOS 5 IPSW file.

Step 3

Once the restore process is completed;

  • Run RedSn0w,
  • Click on Extras button
  • Now click on Select IPSW button
  • Browse and select the downloaded iOS 5 IPSW file
  • Hit the Back button.

Step 4

Now make sure your iPhone, iPad or iPod Touch is turned OFF and Plugged in to your computer. Hit Next.

Now follow the on-screen instructions to enter your device in DFU mode.

  • Hold Down The Power (Corner) button for 3 Seconds
  • Without releasing the Power button, also hold down the Home (Bottom Center) button for 10 seconds
  • Without releasing the Home button, release the Power button BUT KEEP holding the Home button for 15 seconds

Step 5

Click on Jailbreak and then check mark the Install Cydia option.

As soon as your iDevice enters DFU Mode, RedSn0w will start jailbreaking it, which should be completed within few minutes. That’s it!

Like I told you earlier, it’s a tether jailbreak which requires you to connect your iPhone to the PC in order to boot it after each reboot. Here’s how to can tether boot iPhone with RedSn0w:

Tethered Boot iOS 5

  1. Run the Redsn0w
  2. Hit Extras, then Just Boot.
  3. Hit next, follow the on-screen instructions to enter into DFU mode.

This should boot your device. Don’t forget to repeat the tether boot process evertime you reboot your device.

Unlock iOS 5

How to: Unlock iOS 5 iPhone 4 with Gevey SIM
How to: Unlock iPhone 4, 3GS iOS 5 with UltraSn0w

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71 comments… add one
joedoe October 13, 2011, 2:34 am

Now all there’s left is a pois0n shot 😉

noname October 13, 2011, 3:30 am

Can we use this JB for iOS 5 not iOS 5 GM?!

iPhoneHeat October 13, 2011, 3:49 am

wait for the RedSn0w update

tepziu October 13, 2011, 3:38 am

i can’t restore to custom iOS 5. it said problem detective error 1600 plz help

iPhoneHeat October 13, 2011, 3:48 am

Use tinyumbrella and kick out of recovery… http://www.iphoneheat.com/2010/06/tinyumbrella-save-shsh-blobs/

tepziu October 13, 2011, 7:21 am

thank you. i finally did it. after that how can i unlock using ultrasn0w. do i need to use this jailbreak to jb my phone and install ultrasn0w

tepziu October 13, 2011, 7:46 am

after done it how can i get iOS 5 supported ultrasn0w ?

Lucky October 13, 2011, 5:05 am

is JB working??

Yulia October 13, 2011, 6:29 am

i think i’m waiting for the untether jailbreak

hello October 13, 2011, 8:17 am

sn0wbreeze-v2.8b8 come out like more than a week ago it offers a untethered jailbrake for the 3gs old boot rom i thought i would add this becasue this site never posted it so there new feed is some what lacking.

Mauri October 13, 2011, 8:54 am

Hi, i am using iPhone unlock with gevey and the notifications have been activated previously with an atyt sim card. The question is, Will the notifcations work if I install the iOS 5 following the ste

Mauri October 13, 2011, 8:57 am

Hi, i am using iPhone unlock with gevey and the notifications have been activated previously with an atyt sim card. The question is, Will the notifcations work if I install the iOS 5 following the steps you mention before?
Thank you. I dont want to use an iPhone without notifications.

shaun October 13, 2011, 9:21 am

cydia is not working

iPhoneHeat October 14, 2011, 12:23 am

reboot and tether boot

Susiiee16 October 13, 2011, 9:30 am

For the unlockers part do we have to download the iOS 5 ipsw so it can convert to a custom ipsw and if so do we need to download the iOS 5 GM or just the regular one you can get from http://www.iphoneheat.com/2009/03/download-iphone-firmware-files-all-at-one-place/

Sebastian October 13, 2011, 9:34 am

Ok so i managed to create the ipsw and update to ios 5 with my old baseband (gevey working 🙂 ). My question is…. how do i jailbreak now?

iPhoneHeat October 14, 2011, 12:08 am

continue from the step where you run RedSn0w.. means skip the iOS restore process 🙂

Joao October 18, 2011, 1:45 am

Is your data network working? I managed to unlock with gevey, but the internet is not working unless it’s via wi-fi

Rawaz October 13, 2011, 10:48 am

i test it . cydia does not work.

tash October 13, 2011, 11:54 am

whats the difference between
ios 5 and iOS 5 GM?

huzaifahaider October 13, 2011, 12:34 pm

there is no cutom ipsw option in extras :S:S

iHamo October 14, 2011, 10:26 pm

That’s probably because you’re using the wrong version of redsn0w. Make sure you’re using version 0.9.9b5, not 0.9.9b4.

You can find it here: http://www.iclarified.com/entry/index.php?enid=16424

huzaifahaider October 13, 2011, 12:34 pm


noname October 13, 2011, 9:09 pm

NOT working stupid shit!

noname October 13, 2011, 9:16 pm

Cydia is NOT working so JB is NOT working damn, damn, damn! 🙁

After I JB my iPhone i got white Cydia icon and it’s not working… fail upgrade to dam stupid iOS 5. :[ 🙁

iPhoneHeat October 14, 2011, 12:03 am

reboot and then.. Tether boot to enable Cydia..

noname October 13, 2011, 9:18 pm

Had to reinstal iOS 5 becos JB F-up my iPhone 4 Safari stop working!

gfernandez October 14, 2011, 2:35 pm

when the untethered version comes out, can it just replace this version? thanks

albert chandra October 14, 2011, 3:48 pm

why the cracked apps can’t be installed to my iPod after finishing jailbreak?how to overcome it and how to overcome the safari which is crash?

albertchandra October 14, 2011, 4:00 pm

how to install the cracked apps after jailbroken?why the safari crashed?

noname October 14, 2011, 7:02 pm

OK now JB works but, after installing SBsrtings from Cydia I cant tether boot any more why?! 🙁 I only see Apple logo.

whiteghost October 15, 2011, 2:05 am

had same prob ! hold power and home button iphone will reboot!
you will have to have redsnow ready to run tethered boot?
when phone goes of it will reboot hold power button as per redsnows instructions etc and it will reboot tethered!!

noname October 14, 2011, 7:13 pm

Had to restore to 5.0 again no point to use this JB when half stuf is not working…

Sry for bad speling, am not from US.

iHamo October 14, 2011, 10:12 pm

I managed to create a new custom firmware thru redsn0w. However, when trying to restore to that custom firmware thru itunes, I get a “iPhone is not eligible for the requested build”. Am I missing something here??

lostintranslation November 1, 2011, 4:56 pm

I got the same error (not eligible). Anyone know what we’re doing wrong? Followed all steps I could find (download IPSW, create custom IPSW, DFU mode then restore)

Master17 October 15, 2011, 7:06 am

Does AppSync works on IOS5?
Or should we wait for an update?

akram October 15, 2011, 12:35 pm

Hi,my iPhone 4g and i unlock with gevey and my base base band is 4.10.01 . The question is, gevey sm if i instal on iso 5
Thank you.

akram October 15, 2011, 12:46 pm

Hi,my iPhone 4g and i unlock with gevey and my base base band is 4.10.01 . The question is, does my iphone work on gevey sim if i install on iso 5
Thank you plz rply

hati3kuro October 15, 2011, 12:59 pm

I lost all of my cracked applications, my music, my books thanks to this JB… how am I gonna get them back?

iBarf October 16, 2011, 4:08 am

I’m guessing you were a good boy/girl and backed up Cydia with AptBackup and all your “cracked” app settings are either in a backup on iTunes or (my preferred) a manual backup with something like DiskAid.

If not, then have those in mind next time friend.

Oh and your music and books should be forever on iTunes library, if not probably you used something like iPhoneBrowser to add them into the iPhone?

hati3kuro October 17, 2011, 6:14 am

Well yeah, I’ve backed up all my files before going into the JBing part. Like you said, they were all stored somewhere coz when I JBkn the phone I have to download my previous apps all over again, but the datas are still there.
About the music.. well I don’t know but it seems like all of them are gone after I’ve dld the latest version of iTunes, 10.5 that is…and no I didn’t use anything like iPhoneBrowser whatsoever, just plain ol’ drag n drop ^^

Thanks I’ll try to use AptBackup next time.. btw do you or anybody here knows why iBooks won’t open after this JB? Thanks in advance

Myself October 16, 2011, 2:45 pm

RedSn0w crashes during uploading the first stage.

ITBAH October 18, 2011, 3:03 pm

hi download redsnow 0.9.9b6 and try just boot tethered it will work….

Joao Pedro October 17, 2011, 5:29 pm

I just updated to iOS 5 my iphone 4 BB 04.10.01
It went alright, Gevey Sim unlock still working… However, i can´t use the data network of my phone. It means that I can only use Wi-fi.
Did this happend to anyone here? Does anyone know the solution?

arash October 18, 2011, 1:55 am

i do a search in cidya after that my phone crashed and i should turn it off and on again but when its go on the apple sign just go on and off and when i want to do just boot its show this message no identifying data fetched
plzzzzzzzz help

tash October 18, 2011, 12:39 pm

any news on the updated redsn0w ios5 untethered and not the GM? thanks

tash October 18, 2011, 6:18 pm

USB not recognized by windows during DFU mode. what to do?

USlava77 October 19, 2011, 9:07 am

People should first learn to read instructions properly before attempting to jailbreak any device. -_-

andrew October 28, 2011, 7:36 pm


Andrew October 28, 2011, 7:46 pm

I have upgraded to 5.0 on my 3GS by using Snowbreeze and selected the hacktivate option so that the phone is activated and gets to the Home screen.

But now it wont recognise my sim card – it just says ‘No Service’ at the moment. Do I need to unlock it or something? I thought Snowbreeze would have done that?

My settings are:
Version = 5.0 (9A334)
Model = MC135ZP
Modem Firmware = 05.16.05

Does anyone know how I can get my sim to work again???


gee October 28, 2011, 7:56 pm

My iPhone 3GS is already running iOS 5. Do I still have to restore before I start JB?

iPhoneHeat October 29, 2011, 12:38 am


Jennifer October 31, 2011, 10:50 pm

updated to iso 5 (9a334)firmware and followed the instructions it start to install all the way to upload second stage then i get exploit failed. modem firmware 04.11.08 ( i think that’s the base band ?) i also tried snowbreeze i get it to install cydia but it won’t let me ibooty restart it in tethered. you have any idea whats going on? i’m running window xp sp2. i don’t know how to get it to run in administrator. there is no option when you right click on redsn0w for administrator. Please help? Before i upgrade to ISO5 i was running 4.3.1 untethered on the iphone 4 if this help at all….

gee November 1, 2011, 7:36 pm

I have successfully jailbreaked my iPhone 3GS (iOS 5). Can I still back up normally with iTunes 10.5? Can I use that back up on a normal (non-jailbreak) phone?

kyawzaya November 3, 2011, 8:09 am

something wrong with my Ipad 2 ..can’t power on back after followin DFU mode 🙁 help me somebody plz

RVn November 10, 2011, 3:31 am

i jailbreaked my ipod touch with redsnow 0.9.9.b6
and then
i installed installous then it said reboot
when my ipod restart
its turned on
but it dosent work and dosent com main menu
just come apple picture
help me :((

Lynx November 11, 2011, 7:41 am

Please read the comment before you and you’ll get the answer.

Kevin November 11, 2011, 12:35 pm

I have jailbreak my lock iphone 4 ios 5 but i cannot restore it from my back up, the button “restore from back up” not show up… Plz help

Sayed May 1, 2012, 1:06 am

when i am going to jailbreak and i was following steps of redsn0w_win_0.9.10b6 but when click on install cydia.. before finish the process. giving error. (send error or don’t send.

please help me. i restore with iOS. 5.1_9B176
details: iphone4. version 5.1_9B176, and firmware- 4.12.01

jasmeet March 4, 2014, 2:45 pm

I am having iPhone 3g. I jailbreaked it many times . one day I was redsnow to jailbreak ios 4.2.1 from ios 3.0.1. in the jailbreak process ny iPhone gets stuck. when I put it in dfu mode and try to restore ios 4 firmware it show error 1015 .if I restore ios 3 it shows error 1600. ireb even doesnt work. help me. please.

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