react0r – A New iPhone 4 Unlock for 04.11.08 Baseband? [Updated]

by Mahesh Kukreja · 27 comments

in Apple


Update: 11th February, 2012

Hamzah Akram has released react0r. Head on to his blog to know how you can unlock baseband 04.11.08.

An unknown hacker @hamzah_akram seems to be working on an unlock for 04.11.08 baseband for iPhone 4.

react0r unlock for 04.11.08

Hamzah calls this unlock react0r.

What is react0r & how does it work?

react0r is a new unlock tool for 04.11.08 baseband. react0r works by erasing 04.11.08 baseband and flashing iOS firmware with an older baseband version like 04.10.01. After flashing the older baseband, you can use Gevey sim to unlock your iPhone 4. So, if you’ve accidentally updated to iOS 5 or have bought a new iPhone 4 with iOS 5 pre-installed, there seems to be some hope for an unlock.

Hamzah has been working on this unlock since October/November 2011. And about two months later now, he seems to have some progress.

react0r unlock for 04.11.08

According to his tweet:

Dear guys! the up coming nice thing for all of you is called #react0r ! #4.11.08 …. No donation required! this will end the #4.11.08 age!.

Also, Hamzah has a blog where he writes updates related to react0r and 04.11.08 baseband unlock. He has written a tutorial to erase 04.11.08 baseband. This is for advanced users who want to try flashing older baseband by modifying Apple iOS. Try this at your own risk as it might brick your iPhone.

The news is not yet confirmed. We don’t yet know whether this is real or fake.

Update: 10th Jan 2012

Hamzah has posted certain information & photos on his Twitter (@hamzah_akram)

Hamzah Akram - react0r 04.11.08

#Ract0r is not based on bb downgrade! You haven’t seen the photos of #4.11.08 . I wrote abt erasing to reflash but I archived the idea!

So, we basically come to know that react0r does not work by erasing the baseband 04.11.08. Then how does it work? No news about that yet. Hamzah hasn’t posted any more information on his twitter or blog.

But, he has posted a photo of his AT&T locked iPhone 4 on Zain Jordan network.

iPhone 4 - 04.11.08 Unlocked

As you can see in the above photo, MC318LL is the Model number of the iPhone 4. MC318LL is the Model number given to an AT&T locked iPhone 4. Also, the baseband is 04.11.08 (which is not yet unlocked). Yet it’s working on Zain JO carrier.

Unlocked iPhone 4 - 04.11.08

Update: 12th Jan 2012

The infamous iPhone hacker, @MuscleNerd has added @hamzah_akram to fake list on Twitter. This fake list contains users who fake about jailbreaks and unlocks. MuscleNerd is a prominent iOS hacker who is working on iOS jailbreak & unlock since the launch of first generation iPhones. MuscleNerd has also worked hard to find exploits in 04.11.08 baseband. But luck has not favored him yet. So, this almost concludes that Hamzah might be just faking about react0r – the 04.11.08 unlock.

In the meantime, Hamzah has been acting sportingly to this event. Here’s what he tweeted:

Hamzah Akram - 04.11.08 unlock

BTW @MuscleNerd added me to a FAKE list! I respect’em! he has his own attitude! you guys haters just don’t mention me in your tweets!

In his defense, Hamzah also tweeted that he’ll post a video demo of react0r soon.
Hamzah Akram - 04.11.08 baseband unlock

i wonder why you are saying fake as the same time you follow me! anyway i’ll make a vid as requested! thx for who give me a trust! #react0r

We still don’t know whether react0r is fake or real. Only time will tell. Stay tuned for more news about react0r unlock for 04.11.08 baseband.

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{ 27 comments… read them below or add one }

Franco January 7, 2012 at 5:13 pm

dam something new for real..? hope this work..! yeah

Reply

Alex January 9, 2012 at 3:49 pm

Did someone do this ?

Reply

Ami January 11, 2012 at 12:18 pm

Iphone 4 Model MC608ll baseband 4.11.08 IOS 5.0.1 ,

IT’s posible to Unlock

Reply

Admin January 11, 2012 at 10:09 pm

Currently it’s not possible to unlock 04.11.08.

Reply

joe nguyen January 11, 2012 at 11:01 pm

How can i upgrade to ios 5.0.1 but keep my iphone 4 on old baseband .
Now my iphone 4 run on ios 4.2.1 firmware (baseband) 03.10.01.

Reply

Admin January 12, 2012 at 6:20 pm
Jack January 12, 2012 at 7:20 pm

Hoping this is the real deal, but have bad feeling about this.

Reply

Ravi January 13, 2012 at 3:09 pm

If BB can be downgraded, why not have the 1.59 BB and get it unlocked by ultrasn0w…?

Reply

Mahesh Kukreja January 13, 2012 at 3:15 pm

Hamzah now says that he isn’t working on baseband erasure method.

Reply

Ashot January 15, 2012 at 4:49 pm

any good news to unlock BB 04.11.08?

Reply

Mahesh Kukreja January 15, 2012 at 8:28 pm

Hamzah says, on a scale of 1 to 10, his progress is 6.

Reply

Franco January 16, 2012 at 5:14 am

He just said on tweet he has finish and it works 100% ..!

Reply

Franco January 16, 2012 at 5:26 am

This is the latest post from Hamzah on tweeter

Dear Followers! I want to send my successful baseband 4.11.08 information to @sherif_hashim ,so you can get it fast! ITS DONE 100%.#React0r
15 Jan via web

Real o fake..? hmmm

Reply

Ashot January 20, 2012 at 7:04 am

fake?

Reply

Marcin January 20, 2012 at 5:10 pm

Anybody knows sth more about this??
Keep my fingers crossed !!!!

Reply

Ami January 24, 2012 at 11:19 am

How to IPSW 5.0.1 DMG file file Unlock , PLease help me

Reply

Mahesh Kukreja January 25, 2012 at 7:51 pm

Hi,

I don’t get your query. Do you want to create custom iOS 5.0.1 to preserve baseband and use Gevey? Are you on Mac or Windows?

Reply

Shan Lanz January 30, 2012 at 3:07 am

i love u hamzah no homo. cant wait for the unlock.

Reply

Follower February 1, 2012 at 1:50 pm

Yes, I am prefer Hamzah too. Hey Hamzah, please publish your 4.11.08 hacker tool ASAP. Many people waiting for you.

Reply

H.A. February 3, 2012 at 12:09 am

This is my FAKE, FAKE, FAKE… ha ha ha!

Reply

joe nguyen February 7, 2012 at 5:22 am

Hi Admin!
“Work on iOS 5, 5.0.1 with PRESERVE BaseBand 4.10.1 ” I see that on wed of appleberry . That mean the Gevey ultra sim can not unlock my iphone 4 ios iOS 5, 5.0.1 with baseband 03.10.01 ( i have iphone 4 ios 4.2.1 with baseband 03.10.01 . should i build up to ios 5.0.1 by custom IPSW.) please help me ? thank you !

Reply

Mahesh Kukreja February 7, 2012 at 11:01 am

Gevey Ultra can unlock custom iOS 5.0.1. You must build a custom iOS 5.0.1 via sn0wbreeze 2.9.1 or redsn0w. And then install Furiousmod 2.0.

Reply

joe nguyen February 8, 2012 at 10:38 am

i get itunes error 11 , i couldn’t find down how to fix yet . please help me fix that. even now i can’t fix recovery to come back to old ios :(.

Reply

joe nguyen February 8, 2012 at 6:51 am

thank you!

Reply

joe nguyen February 9, 2012 at 10:43 am

i find down, just don’t tinyumbrella . it works !

Reply

Lyndon February 22, 2012 at 7:36 am

any luck for for 04.11.08?…i am so dismay, that i restore and update my iphone, now my gevey wont work!… i thought still the gevey supreme will work for me.. but now. its a bad luck and frustrated. any help????

Reply

Danny February 28, 2012 at 8:17 am

What do you think about this guide?
http://www.letsunlockiphone.com/guid…band-04-11-08/
I’ve tried it to unlock my iPhone 4 using this guide, but stucked at step 9. Do you think it’s real software unlock or complete fake?

Reply

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