ultrasn0w carrier unlock now available for iPhone 4

By Rene Ritchie
last updated

If your iPhone 4 is locked to AT&T or another carrier, good news -- the ultrasn0w unlock is now available to set you free.

Those who ponied up full price for an international, factory unlocked iPhone 4 direct from Apple need not apply. Those who chose subsidies and the lock that came with it, get your Jailbreak on and head over to Cydia. If ultrasn0w doesn't show up immediately, search for repo repo666.ultrasn0w.com.

Version 1.0-1 of ultrasn0w works for:

  • iPhone4 baseband 01.59
  • 3G/3GS basebands 04.26.08, 05.11.07, 05.12.01 and 05.13.04

Remember, you'll need a microSIM card if you plan on jumping to another carrier, and in the US that means manually cutting down your T-Mobile SIM to microSIM size.

As always, Jailbreak and unlock will void your warranty and could cause other problems with your device. If you don't know what you're doing, don't do it. If you decide to go ahead, let us know how it works for you.

[Dev Team]

Rene Ritchie
Rene Ritchie
Contributor

Rene Ritchie is one of the most respected Apple analysts in the business, reaching a combined audience of over 40 million readers a month. His YouTube channel, Vector, has over 90 thousand subscribers and 14 million views and his podcasts, including Debug, have been downloaded over 20 million times. He also regularly co-hosts MacBreak Weekly for the TWiT network and co-hosted CES Live! and Talk Mobile. Based in Montreal, Rene is a former director of product marketing, web developer, and graphic designer. He's authored several books and appeared on numerous television and radio segments to discuss Apple and the technology industry. When not working, he likes to cook, grapple, and spend time with his friends and family.

26 Comments
  • First???
    YES IT WORKS....
    T-Mobile USA
    THANKS....
  • First?...Get a life Bro. LOL
  • Third..my day now is completed. BTW why does everybody make such a big deal about first? I have never understood it.
  • Anyone tried it?
    @websyndicate: If you ain't first, ur last!
  • Fifth!!!! lol
    Works Perfect and easiest ever
  • I miss the old jailbreaking days.
  • Wont jailbreak until Apple releases a fix for the prox sensor... Once that is fixed I'll set me free
  • new authentic iphone 4 16GB just costs me $392(including shipping fee),it is beautiful, you can get more from http://www.trade-whole.com/apple-iphone-4-black-16gb-unlocked-mc603ba-gs...
  • Has anyone unlocked it and used it on T-Mobile USA? Is their hidden/secret support for T-Mobile's 3G band?
  • @PIPI are those iphone 4's legit(authentic)
  • ELEVENTH !!!!!!! (but last until someone else posts a comment)
    I did it just for the hellavit. No issues so far.
  • TWELFTH !!!! Now I'm not last ! Wait...
  • yes,legit and authentic
  • @FRESHLY it is legit and authentic,has warranty
  • Those of you who unlocked your iphone 4, is it working on T-Mobile USA's 3G network?
  • if you restore and get rid of the jailbreak.. does that remove the unlock as well?
  • Worked for me without any problems and i live in Finland. Tested with other operator 3g network and worked like a dream. Totally recommend.
  • After unlocking it, my virtual voicemail is not working!!!!!!!!!! Anyone have the same problem, is there a fix?
  • Can someone who has jailbroken their iphone4 and switch to TMO confirm that it works on TMO 3G??? If so, I'm getting one....
  • Works perfectly on the Rogers iPhones; both 3GS and 4. Telus and Bell sims work on it as well as Fido.
  • Ulocked jailbroken wanted to erased personal data, before selling.reset settings and after that phone won't start stuck on apple screen. Help
  • Google DFU mode. Same thing happened to me and DFU mode worked after a few tries. Don't worry. This happens to a lot of people. Make sure your iTunes is the most recent version too. That was the final missing piece of the puzzle for me.
  • does this work for a verizon carrier?
  • Does it matter if firmware is V.4.0.2? I unlocked on with V4.0.1
  • Have a verison sim card? Give it a shot.
  • hi @pipi.
    i have iphone4 4.3.5 n its carrier locked Telenor Sweden.i am a student have no more budget.
    how i jailbreak n carrier unlock my device from carrier?
    plz mail or tell me 100% legal n authentic way.
    Thanks in advance!!