Please post your discussion concerning the iPhone Jailbreaking in this thread. I assume David will be closing the V1 thread once this one is up and running. I will put in some of the initial posts which is extremely informative from the previous thread as well (I hope samlee860407 is okay with that)

Credit goes to David and samlee860407 for their initial posts in version 1 of the thread.

Click Here for Version 1 of the Thread

Click Here if You want to read Version 2 of this thread

From version 1 of the thread




iOS 5.1 information

1. iPhone 4, iPhone 3Gs can be jailbroken TETHERED with the latest redsn0w version 0.9.10b6

1b. iPhone 3Gs old bootrom can be jailbroken untethered with the latest redsn0w 0.9.10b6

2. iPhone 4s CANNOT BE JAILBROKEN at this time for iOS 5.1 so if you are already jailbroken on 5.0.1 DO NOT BE SILLY AND UPGRADE. Stay where you are and I'll keep this thread posted.

iOS 5.0.1 Information

1. iPhone 4s - Absinthe Jailbreak tool is now available for Mac OS and Windows for iOS 5.0.1 (both Build) and 5.0

2. ALL A4 (3Gs, iPhone 4) devices and older can be jailbroken untethered on the latest iOS 5.0.1

2a. iPhone 4 iOS 5.0.1 - Jailbroken via Corona Exploit : Use redsn0w version 0.9.10b5 or Pwnagetool
2b. iPhone 3Gs iOS 5.0.1 - Jailbroken via Corona Exploit : Use redsn0w version 0.9.10b5 or Pwnagetool

I found this iPhone Jailbreak Wiki which is very useful to see the Jailbreak Matrix (The tools used for jailbreaking for each iPhones firmware)

Jailbreak Matrix


Below are the Guides for each iPhone devices.

iPhone 4s

Since the Absinthe tool uses the backup and restore injection method, it is probably a good option to backup and restore your iPhone 4s first (and set it up as a new phone) before running the Absinthe program. If you have a huge backup, it has been reported that the jailbreak process took a long time. You can always restore the backup of the 4s once all the jailbreaking process is completed.

How to Perform an Untethered Jailbreak for your iPhone 4s on Mac OS

How To Perform an Untethered Jailbreak for your iPhone 4s on Windows

How to Jailbreak your iPhone 4s using Command Line Interface (CLI)

Where to Download Absinthe (Mac/Windows)


iPhone 4

How to Jailbreak Your iPhone 4 Using RedSn0w (Mac) [5.1]

How to Jailbreak Your iPhone 4 Using RedSn0w (Windows) [5.1]

How to Perform an Untethered Jailbreak of Your iPhone 4 (Windows) [5.0.1]

How to Perform an Untethered Jailbreak of Your iPhone 4 (Mac) [5.0.1]

How to Jailbreak Your iPhone 4 Using PwnageTool (Mac) [5.0.1]


iPhone 3Gs

How to Jailbreak Your iPhone 3GS Using RedSn0w (Windows) [5.1]

How to Jailbreak Your iPhone 3GS Using RedSn0w (Mac) [5.1]

How to Perform an Untethered Jailbreak of Your iPhone 3GS (Windows) [5.0.1]

How to Perform an Untethered Jailbreak of Your iPhone 3GS (Mac) [5.0.1]

How to Jailbreak Your iPhone 3GS Using PwnageTool (Mac) [5.0.1]

For those who do not wish to re-restore their iPhone since they are already on the iOS 5.0.1 tethered/semi-tethered jailbreak, The Chronic Dev-Team has released an untethered jailbreak via a Cydia Tweak called Corona. Please find below the Guide on how to do it

How to Untether Your Previously Tethered Jailbreak Using Corona [5.0.1]
A lot of the time when you need to jailbreak, you will need to download a fresh iPhone Stock firmware (DO NOT TOUCH THESE KIND OF FIRMWARE IF YOU ARE USING A LOCKED SET!!!!!)

You can find the location of the files in the link below

Where To Download iPhone Firmware Files From

One of the most used jailbreaking tool is redsn0w and below is the link where you can download whatever version of redsn0w you want

Where to Download RedSn0w From
I will try and keep this OP updated from time to time.

Happy Jailbreaking!!!


UNLOCKING

This only applies for those who are on Locked Sets (usually those who bought from shops where the dealer brought in Locked Sets, mostly AT&T sets from the US).

Unlocking and Jailbreaking are 2 different things. However, since you will need to jailbreak to unlock, then I suppose, it is relevant to the jailbreaking discussion.

What is Unlocking? It's a method that allows you to enable your Locked Sets to use any SimCard with your iPhone.

What is a Locked Set? iPhone sold in many countries (especially the US) are locked to a certain service provider and the iPhone will only accept that particular service provider's simcard.

How do I unlock my locked sets?

1. Software Unlock - supports some baseband (modem firmware) via ultrasn0w. Support 4.26.08, 05.11.07, 05.12.01, 05.13.04, or 06.15.00 on the iPhone 3GS, or baseband 01.59.00 on the iPhone 4,

[UPDATE:

A Chinese hacker has managed to find an exploit that can UNLOCK any jailbroken iPhone on any firmware and on any baseband. This has been confirmed as legit by Musclenerd. Please follow the guide from the link below

http://www.redmondpie.com/how-to-unlock-an...d-and-firmware/

How to Unlock your iPhone 4s, iPhone 4, iPhone 3Gs using SAM (5.0, 5.0.1, 5.1)

2. Hardware Unlock - via Gevey Sim (Supports the iPhone 4 on baseband higher than 01.59.00)
UPDATE: There are reports that the latest Gevey Ultra will support iOS5.x BUT, you will need to PRESERVE the 4.10.x baseband. We are not sure if a preserve baseband lower than 4.10.x on iOS5.x will be supported or not.
UPDATE 2: There are confirmed reports and reviews of hardware unlock solutions for both the iPhone 4 on iOS 5.0.1 with baseband 4.11.08 AND the iPhone 4s.

What happens if I'm not on those baseband mentioned

1. For the 3Gs, you can install the iPad baseband (6.15.00) but there is no way back from this baseband. This baseband has been reported to introduce issues with notifications, Location Services and basically killing your GPS. Your choice.

Apple has come out with a new firmware, can I upgrade?

Be very very very very very very (I cannot emphasize this enough) careful about upgrading. You Must Preserve Your Baseband or your will lose your unlock. The only way to preserve your baseband is via creating a Custom Firmware using either Redsn0w/Sn0wbreeze (Windows) or Redsn0w/PwnageTool (Mac)

Please follow the tutorial from the link below on how to Jailbreak AND Preserve your baseband (including the iPad 6.15.00 baseband for the 3Gs).

[How To] Preserve Baseband & Jailbreak iOS 5.0.1 using sn0wbreeze 2.9

The link above has a bit more detail than some of the link from RedmondPie especially with the explanation of the choices you have to make.

If you are on a locked set, before proceeding with changing anything with your iPhone, post your iPhone details and ask our members opinion. You really do not want to turn your iPhone to an expensive iPod Touch.

I'll update this information further when I have the time.

Firmware Versions, Baseband (Modem Firmware Versions) Information

The link below will point you to a nice site (though a bit outdated) with the iOS Firmware Version for each iDevices and it's Corresponding Baseband (important for that unlock etc). As per De.Si.Mon request

Firmware and Baseband Version Matrix This info is a bit outdated (up to iOS 4.2.1)

For the latest Matrix, please have a look here

Updated Firmware and Baseband versions Matrix

Another good site for the firmware and baseband version table can be found below

iPhone Wiki's Firmware & Baseband information

DOWNGRADING

There will be times when you will decide if the latest and greatest iOS from Apple is suited for you. There will be times when your Cydia apps that you bought and can't live with is not compatible with the latest version of the iPhone firmware, and thus you've decided to downgrade the firmware

You CAN ONLY downgrade if you have the following

1. The unique (no you cannot use any other iphone's i.e your brother/friends/sisters etc) SHSH - SHSH is a unique identifier for each iPhone that Apple uses to verify the eligibility of the iPhone for each firmware restoration. Without an SHSH, you cannot (no matter what you do, so stop asking about it) upgrade (i.e. from 4.1 to 4.3.3), restore (from 4.3.3 to 4.3.3) or downgrade (from 4.3.5 to 4.3.3) your iPhone firmware once Apple stops signing that particular versions of the firmware.

2. If you were lucky enough (or had the good foresight) to save the SHSH of your previous firmware versions, then you can follow the guide below on how to Upgrade/Restore/Downgrade to a firmware version that Apple no Longer Signs.

3. An iPhone 4 or a 3Gs with SHSH saved either using TinyUmbrella or iFaith. Members have reported success in downgrading from 5.1 to 5.0.1 on the iPhone 4 and the 3Gs using iFaith.

Guide on How to Downgrade from 5.1 to 5.0.1


Downgrade iOS 5.1 To 5.0.1, 5.0, 4.3.3, 4.3.5 On iPhone, iPad, iPod touch [How-To Tutorial]


Guide on How to Downgrade from 5.1 to 4.x.x


How to Downgrade Your iPhone Firmware Using TinyUmbrella (Mac)

How to Downgrade Your iPhone Firmware Using TinyUmbrella (Windows)

Now, Apple has apparently stopped the process of unique SHSH identifier for iOS 5.0, they have made it more difficult. So if Apple were to come up with iOS 5.1 and stops signing 5.0.1, even if you have saved the SHSH for 5.0.1, the guide above will not work if you were to Restore/Downgrade /Upgrade to 5.0.1 if Apple stops signing that version.

There are steps apparently using iFaith with the saved SHSH + APTickets + Custom Firmware which supposedly will allow you to do it, but I've never tried it and Google is probably a better option in this case.

Apple has released iOS 5.1

DO NOT UPGRADE TO IOS 5.1 IF YOU WANT TO KEEP YOUR JAILBREAK



This post has been edited by azraeil: Apr 23 2012, 01:23 AM

Will edit the OP but it will take some time .... there's so much info heh heh heh

I've added in the Jailbreak Matrix so that you can check what version of iPhone firmware you have and what tool to use to jailbreak'em.

The 4s should be coming soon. Let's hope we get it this week.

I've added some info in the OP regarding UNLOCKING since we get that question so many times in the thread.

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Added on January 16, 2012, 1:30 pmRedsn0w has been updated to include iBooks fix so if you're having issues with iBooks (which I suspect you do) then download the latest version and re-run the jailbreak

http://www.iclarified.com/entry/index.php?enid=19360

Or if you're running Corona, Cydia has updated Corona to 1.0.4 to do the same thing. So open Cydia and refresh to see if you can see the latest updated Corona.

This post has been edited by azraeil: Jan 16 2012, 01:30 PM

Yes. If the jailbreak for A5 devices is released, then both the iPhone 4s and the iPad 2 will get their jailbreak.

I have updated the OP with information requested by De.si.Mon which points you to a link with the firmware and baseband version matrix. Hope this helps.

You cannot because it has not been released yet.

Thanks De.si.Mon, already updated the OP with some more info.

Multi Gesture is not working on iOS 5 iPhone. It works on 4.3.3 but not ios 5. Use Activator to enable gesture mode.

Stay on 5.0 if your unit is simlocked. Musclenerd is working on baseband 4.11.08 for the 4s which is only on 5.0, 5.0.1 uses a different baseband.

I am not sure though if the upcoming jailbreak will work on 5.0

The iPhone 4 does not change baseband from 5.0 to 5.01 BUT the iPhone 4s changes from 4.11.08 on iOS 5.0 to 1.0.14

Yes, you are in a tricky situation. How are you using it now by the way?

Whatever it is, just connect your 4s to TinyUmbrella and save the SHSH for 5.0.1 while Apple is still signing it. Maybe the dev team will find a way to use the SHSH in the future.

You don't need to upgrade to 5.0.1 to save the SHSH

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Added on January 17, 2012, 11:37 amIf you have Cydia installed and you have ultrasn0w as a tweak, then your iPhone is sim locked.

If you cannot use any other simcard other than the AT&T or etc etc.

All iPhone sold by Maxis/Digi/Celcom and Apple store Malaysia is sim free



This post has been edited by azraeil: Jan 17 2012, 11:37 AM

Then you definitely just need to stay on 5.0 and wait for the unlock for 4.11.08 baseband for the 4s.

Download the latest tinyumbrella and just connect your iPhone and press save SHSH. It will save the small blobs (6-7kb in size) to your local drive.

Sounds to me that you can only upgrade to 5.0.1 if you were on a firmware with 4.10.1 baseband as you need to preserve the 4.10.1 baseband.

Do not check any of those options. TU should just get it from Apple for the 4s.

Yes, make sure those options are unchecked.

No. It means that you will not be able to downgrade to 5.0 (should you ever upgrade your 4s) etc.

Sweet .... too bad I'm on the 4s right now. Hoping the JB for the 4s will be out soon

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Added on January 17, 2012, 8:54 pmGood luck. Now tell us again why you bought a locked set? Must be super cheap Heh heh heh ...

This post has been edited by azraeil: Jan 17 2012, 08:54 PM

Jailbreaking is easier than unlocking the phone. The last baseband that can be unlocked was the 01.59 for the iPhone 4 and that was like 18 months ago. It's also because a lot of hackers are concentrating on jailbreaking and not the unlocking.

Gevey ultra is about 150 ringgit right? It's not out for the 4s yet though.

He has an expensive iPod touch for now. The baseband cannot be unlocked with ultrasn0w or Gevey.