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Download Custom iOS 4.0 Firmware for iPhone 3GS 3G [IPSW]

by EngineerHead on June 23, 2010

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After the release of PwnageTool 4.0, the users can actually jailbreak iPhone 3GS 3G iOS 4 with a stable and trusted tool from infamous iPhone Dev Team. Luckily, there is also no wait involved to unlock iOS 4 as ultrasn0w 0.93 does it for you. We might get sn0wbreeze 1.6 very soon. Both of these tools actually create custom firmware which does not upgrade your baseband.

If you are not interested in cooking these custom firmware [ipsw] and just want to restore it straight away for jailbreak, we have created these custom iOS 4 firmware [ipsw] for iPhone 3GS and 3G using PwnageTool 4.0/4.01. These custom firmware are different for unlockers [Unofficial Carriers] and official carrier users. Download the one according to your requirements and follow official PwnageTool 4.0 instructions.

The custom firmware are ready and links are being updated as soon as uploads complete. Stay tuned.

Update:All custom iOS 4 ipsw have been recooked using PwnageTool 4.01 and links are live except  for 3GS official carrier which will be up soon also.

Download Custom iOS 4 Firmware for iPhone 3GS

3GS Custom iOS 4.0 Firmware [Unofficial Carrier IPSW (For Unlockers)] [iBooks Fix]

3GS Custom iOS 4.0 Firmware [Official Carrier IPSW] (iBooks Fix)

Download Custom iOS 4 Firmware for iPhone 3G

3G Custom iOS 4.0 Firmware [Unofficial Carrier IPSW](iBooks Fix)

3G Custom iOS 4.0 Firmware [Official Carrier IPSW] (iBooks Fix)

How to:

Unlock iPhone 3GS iOS 4 with ultrasn0w 0.93.

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{ 149 comments… read them below or add one }

blaster December 8, 2010 at 10:20

o you risk losing your data if you do that ? (SMS, pictures, adress book)

or will it just update the firmware, and leave all the data that was already on the iphone ???

thanks a lot if you can help me

Reply

Xerv December 27, 2010 at 04:58

It will erase everything. except you already backup your file and do the restore on itunes, once the device is upgradeable

Reply

Karl January 12, 2011 at 04:27

Hey, the link for 3gs unlockes is down. Could you restore it plz?

Reply

pacman February 10, 2011 at 01:03

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stevo February 10, 2011 at 16:42

I have a 3g 3.1.3 jailbroken with spirit what would be the correct way to update to 4.0 i dont want to start it with redsnow and it not work any help would be greatly appreciated thanks

Reply

engineerhead February 10, 2011 at 17:58

upgrade to 4.1 and use Limera1n

Reply

Kevin March 24, 2011 at 15:13

I used the unactivated version on my GS iPhone and it was the only thing that finally fixed my iPhone.I had been trying for days to get my iPhone working again and was about to give up on it.I am so happy I found this website.

Thank you so much !!!

Reply

Kevin March 24, 2011 at 15:18

I used the unactivated version on my 3GS iPhone and it worked perfectly.I had been working for days to get my iPhone working again and was about to give up on it.This was the only thing that fixed my phone.I am so happy I found this website !!

Thank you so much !!!

Reply

@techie_2000 July 2, 2011 at 16:39

AirPhones is a nice software, which allows streaming audio from your Windows, Mac or Linux computer to an iPhone, iPad or iPod Touch device.

You guys should review it: http://www.wmlcloud.com/windows/airphones-streams…

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