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Unlock iPhone 4 and iPhone 3GS on iOS 4.3.1 Using Ultrasn0w Fixer

D

dev10051981

macrumors newbie
Original poster
Feb 7, 2011
18
0
As we all know It was not possible to unlock iPhone 4 and iPhone 3GS using Ultrasn0w after untethered iOS 4.3.1 jailbreak.The issue has been fixed and released as Ultrasn0w 4.3.1 fixer.

Note:

  • Ultrasn0w unlock is supported by Sn0wbreeze 2.4b1 for following basebands.
  • Baseband 01.59.00 (iPhone 4)
  • Baseband 04.26.08 (iPhone 3GS)
  • Baseband 05.11.07 (iPhone 3GS)
  • Baseband 05.12.01 (iPhone 3GS)
  • Baseband 05.13.04 (iPhone 3GS)
  • Baseband 06.15.00 (iPhone 3GS)
  • iPhone 3GS baseband will be upgraded to iPad baseband 06.15.00 after that only iPhone 3GS can be unlocked.By upgrading to baseband 06.15.00 you might lose your GPS feature.
  • You need to have a jailbroken iOS 4.3.1 device.

Steps 1: Launch Cydia on your jailbroken iPhone 4 or iPhone 3GS on iOS 4.3.1.
Steps 2: Tap on Manage tab at the bottom of the screen.
Steps 3: Select Sources from opened Manage window.
iPhone4Unlock1-333x500.jpg

Steps 4: Select Edit and then select Add.
Steps 5: Type repo as http://cydia.pushfix.info
ultrasn0w-unlock-4.3.1-fixer-4.jpg

Steps 6: Tap on Add Source.Once the source has been added by Cydia then Tap on Return to Cydia button.
Steps 7: As soon as the installation is completed please search for "Ultrasn0w fixer for 4.3.1" in Cydia and install it.

It will automatically unlock your iPhone 4 or iPhone 3GS on iOS 4.3.1 running following basebnds

  • Baseband 01.59.00 (iPhone 4)
  • Baseband 04.26.08 (iPhone 3GS)
  • Baseband 05.11.07 (iPhone 3GS)
  • Baseband 05.12.01 (iPhone 3GS)
  • Baseband 05.13.04 (iPhone 3GS)
  • Baseband 06.15.00 (iPhone 3GS)

http://www.unigizmo.com/2082/steps-by-steps-guide-unlock-iphone-4-and-iphone-3gs-on-ios-4-3-1-using-ultrasn0w-fixer
 
Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8G4 Safari/6533.18.5)

I have done this. It works...sort of. The signal bars don't change though. It's stuck at one bar all the time.
 
This does not work with 5.16.02, right? Is there any way to unlock this baseband?
 
awadeee said:
Use Redsn0w to upgrade to 6.15 or wait for an unlock that may never come out.
Click to expand...

Thanks....hmm...the 6.15 thing sounds kinda sketchy. I might have to buy another iphone than hasn't been upgraded. I just grabbed one that the owner had updated before selling. Too bad, it is in really great shape!
 
Thanks OP, definitely cleared up some of my questions, including the confirmation that the unlock only supports 01.59 BB for iPhone4 :(

Does anyone know if the guys are working on unlocking BBs like 03.10.01 and others? I was hoping/thinking that Musclenerd's been working on the new unlock as opposed to for those retaining the current unlock... :)
 
heyloo said:
Thanks OP, definitely cleared up some of my questions, including the confirmation that the unlock only supports 01.59 BB for iPhone4 :(

Does anyone know if the guys are working on unlocking BBs like 03.10.01 and others? I was hoping/thinking that Musclenerd's been working on the new unlock as opposed to for those retaining the current unlock... :)
Click to expand...

nobody knows the status except Musclenerd and a few others there not talking!
 
bape47 said:
i did it but only one bar signal always
Click to expand...

But what's your actual signal strength (go to phone keypad, type *3001#12345#* and hit Call and look at the number in the upper left where the bars usually are)?
 
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