Download: ultrasn0w to unlock iPhone 3G / 3GS (firmware v3.0)

July 9, 2009 by dennis

iPhone 3GS owners, rejoice! The iPhone Dev Team have released an iPhone 3GS compatible version of Ultrasn0w, their free tool that allows you to unlock your iPhone for use with any service provider.

iPhone 3G is of course also supported.

To run this program you need to download it via Cydia, which means that first you need to jailbreak your iPhone 3G/3GS and install this program. You can do that using the latest version (v0.8) of redsn0w (which you can download here).

ultrasn0w iphone

Installation instructions:
1. Ensure you have upgraded to iPhone OS v3.0 (only if you’re an iPhone 3G owner — iPhone 3GS owners already have v3.0 installed by default so they skip this step and go directly to #2).
2. Jailbreak your iPhone 3G using redsn0w. Make sure you’ve installed Cydia while doing that.
3. Run Cydia in Hacker mode on your iPhone.
4. Add the repo repo666.ultrasn0w.com to your sources list. That last “o” is actually the number zero “0”! If you use the letter “o” you’ll get an error.
5. Search for ‘ultrasn0w’ in cydia and install it (once again, that “o” is actually a “0″ = zero)
6. Reboot your iPhone
7. T-Mobile USA users should disable 3G before using ultrasn0w
8. Enjoy

IMPORTANT RELEASE NOTES BELOW

Last night we released updated versions of our redsn0w jailbreak and ultrasn0w carrier unlock. These versions are now compatible with the iPhone 3GS running at 3.0. Welcome aboard, 3GS owners! (The tools of course remain compatible with all of the other platforms too.) Also last night, saurik released 3GS-compatible versions of MobileSubstrate and WinterBoard, components that enable many different add-ons and themes.

We realize we upset some folks (e.g. existing 3GS owners) with our earlier announcement that we wanted to hold onto the 3GS iBoot-family hole until 3.1 was out. Our aim there was to get as many people as possible onboard (within reason of course) before revealing the hole, since Apple will fix it immediately. But all of that became moot when the purplera1n release was made, since it uses the same hole.

For those of you who already own 3GS phones, the outlook is bright. As long as you have your personalized (signed) dfu/img3 files (more here), you’ll always be able to jailbreak (even if you slip up and install stock Apple firmware in the future). For those of you without 3GS phones, it’s a race against the clock to use this particular hole. There’s nothing we can do about that, but we will always be looking for new holes.

ultrasn0w unlockers — You all must remain particularly vigilant against upgrading your basebands, since doing so will kill the unlock (for most phones, there’s no going backwards in baseband version). Apple has gotten very serious with the latest baseband — they’ve removed 180 (!) commands in an effort to cut down their exposure to holes. So please always stay away from stock Apple IPSWs and instead use our tools as we release them. These tools let you update your firmware without updating your baseband.

Those installing ultrasn0w will probably also need to do a single run of Settings->General->Reset->Reset Network Settings. We’re testing various fixes for that particular glitch.

Once again, thanks to @Oranav for finding the new injection vector that allowed us to transform yellowsn0w for baseband 02.28 into ultrasn0w for baseband 04.26, and for not revealing it to Apple before it could be used where it would be most effective — firmware 3.0.

redsn0w platforms — This is the first redsn0w release that also supports linux! It’s the newest version of the bunch, so any feedback would be appreciated. But right now, redsn0w should work on OS X, Windows, and linux.

Tags: app, Apple, hack, iPhone, iPhone 3GS, iTouch, jailbreak, Mac, News, OS, redsn0w, unlock, USA, Yellowsn0w

Article by dennis

Dennis Sloutsky is one of the oldest members of iPhoneWorld.ca, having co-started the site in January 2007. He stills owns an iPhone 2G and uses it sometimes just for fun. His hobbies include traveling, writing and playing his guitar.

asdfa

thx
sulaiti

I used 3G 3.0 firmware for redsn0w's first screen where you have to browse to the restore file but i get hanged in the end with “waiting for reboot”.. i have a 3GS, should i be using the 3G's firmware? If not, how can i get the 3GS firmware to restore?

Please help! Thanks
Jonathan

Hey, I was wondering if the iphone 3GS is unlocked. Would i be able to get a pay as you go plan? Is there another way to do this? If not, what is the cheapest plan i can go with.. i want the phone but want to spend like 20 – 30 dollars a month.
Jonathan

Btw, sorry i didn't add this before. I don't want a contract.
noahXNZ

Hi you folks,

Many many thanks for your wisdom!!!.

I've just suceeded jailbreaking my new iphone 3GS and and sim unlocking it. Now I can use my usual sim card. Iam very very thankful. I've used a bit of money to gain access to some useless sites without much help. If I can be of help to others, I will be more than willing to share my experiences. Thanks to all the brains at work.
fathiya

Hi
shaik

i try to jailbreak the iphone3G with the firmware 3.0.1 but it cannot. unable to find the ipsw. redsn0w only work for 3.0 it wont work with 3.0.1.
walterg1187

thank you
mcarreiro

while going to unlock in cydia after typing in the repo666 i get a message saying “did not find repository” can anyone help?
cipta_brill

I am interested in buying iphone 3GS, but I do not know if it is unlockable yet. You said you had 3GS right? and you unlocked it? how did you do it?
robertcam21

I followed all the instruction inorder to install cydia on my iphone. After rebooting, i checked on my iphone and the cydia application does not appear on the screen. I am just wandering if someone can help me on how to get cydia application to be displayed on my iphone screen so i can move to the steps.
thanks next
iuli

e belea
lpolas

Hi guys,

Nothing happened. The process works, no errors or messages, but when I reboot the iphone everything looks the same. Any tips?

Thank you
CaZzUaLLv3

im getting a contract iphone 3gs & i was wondering if 1.1.1 or 3.0.1 software is installed….if no software is installed could i do jailbreak it rite away?
contact me on http://www.nextgenupdate.com my name on it is CaZzUaLLv3
CaZzUaLLv3

im getting a contract iphone 3gs & i was wondering if 1.1.1 or 3.0.1 software is installed….if no software is installed could i do jailbreak it rite away?
contact me on http://www.nextgenupdate.com my name on it is CaZzUaLLv3