Download UltraSnow Fixer To Unlock iPhone 4/3GS On iOS 5.1 (Guide)

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The popular unlocking tool Ultrasnow fixer has been updated to unlock iPhone 4 and iPhone 3GS on iOS 5.1. The newly released firmware from Apple. So if you rely on carrier unlock go ahead and download Ultrasnow fixer to unlock iPhone on iOS 5.1 by following the guide below.

If you are unaware of Ultrasnow fixer’s history; it is a tool developed to unlock iPhone 4 and iPhone 3GS with the help of Ultrasnow, the popular unlocking tool from the iPhone dev team. It mainly unlocks those basebands which are supported with Ultrasnow.

The new ultrasnow fixer does not support any new basebands in the latest version for unlocking iPhone on iOS 5.1. These are the basebands that it will unlock.

Unlockable basebands with Ultrasnow fixer iOS 5.1

  • 01.59.00
  • 04.26.08
  • 05.11.07
  • 05.13.01
  • 05.12.01
  • 06.15.00

iPhone dev team has mentioned that they are going to release Ultrasnow for iOS 5.1 in a couple of days but if you simply can’t wait to unlock your iPhone on iOS 5.1 follow our guide below to unlock your iPhone 4/3GS.

Ultrasnow Fixer Unlock iOS 5.1

Important note:

You will need to have a jailbroken iPhone 4 or iPhone 3GS depending on which one you want to unlock. If not already jailbroken head over to this link to jailbreak your iOS device.

While upgrading to new firmware remember to preserve your baseband. If baseband is not preserved here over to this link to follow the guide for preserving baseband.

STEP 1:  Download iOS 5.1 with a preserve baseband and jailbreak it.

STEP 2: Once jailbroken launch Cydia and go to Manage > Sources

STEP 3: Tap Edit at the top right corner and add the following repo:

STEP 4: Once you have added the repo go back to sources and tap on the repo you just added.

STEP 5: You will now see “Ultrasnow fixer for 5.1”. Simply install it.

STEP 6: After installing ultrasnow fixer for iOS 5.1. Search for “Ultrasnow 1.2.5” and install it.

STEP 7: Reboot.

That’s it! You have successfully unlocked iPhone 4 or iPhone 3GS on iOS 5.1.

If you find any problems while getting your iPhone unlocked via ultrasnow fixer for iOS 5.1. Comment below and we will get to you.

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36 Comments to Download UltraSnow Fixer To Unlock iPhone 4/3GS On iOS 5.1 (Guide)

  1. i have 3gs oldbootrom
    upgrade it to ios 5.1
    its jailbreaked
    and cydia work fine
    but the the sim card is not working
    stcked on searching orno service

  2. mecagoenlaputabaseband

    oooooh no baseband 4.11.08 suported, it’s very very vey funny. I will throw my 32GB iphone to the sea…

  3. This hackers make me ill, all This guys sold out to Apple And dont care about the iPhone people who are locked in bb 04.11.08. Ultrasnow is a fuckin circus they only support new basebands when Apple releases new ones And geveysim
    Releses a new geveysim, only after the big companys make they’re money only then ultrasnow upgrades, that is fuckin lame, they are all taking money from My And everybody pockets.
    To the people that own ultrasnow i only say ” let freedom ring with a shotgun blast”

  4. i have an iphone 3gs on 5.1 and 6.15.00 bb…i load the ultrasn0w fixer, then ultrasn0w, just get “searching”, then reboot and keep getting “searching”…any ideas?

    • I’m having the same trouble as you: just I have 5.1.1 with 6.15.00 no service and searching all the time.

  5. how about my bb 04.11.08?? what are you doing?? the new version can be unlocked but the old version 5.0.1 can’t be.
    Can you tell me why!!!!

  6. I have followed this procedure but is just keeps on searching:
    baseband: 5.16.05

    => upgraded to 5.1
    => jailbreak with redsnow
    => unlocked
    => installed ultrasnow fix
    => installed ultrasnow
    => rebooted
    => still no signal


  7. It still does not work for me either. This is what has been done and what happens:

  8. make custom ipsw using latest redsnow, then on tinyumbrella, set cydia host in advance settings save shsh for good, pwned DFU mood for itunes, restore with no baseband ipsw made by redsnow, then after restore, jailbrake, check install cydia and ipad baseband for oldboot rom., then lunch ultrasn0w,.. ooooohhhhhhhhhhhhLa….

    Cheeerrrrrrrsssssss!! 🙂

  9. It works… Then only thing you have to do is turn off the device afrter fixer instalation for 1 or 2 mins then turn back on

  10. currently check what origin carrier your iphone has, and look for better remote factory unlocking sites, depends in availability of carrier unlock system and that will cost huge money and badly waiting for the unlock.

    another cheeerrrrrrrrrrrrrrssssssss for that!!!!!

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