How to Unlock the iPhone 4, 3GS, 3G Using UltraSn0w

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jazz - September 16, 2012 at 9:18pm

What about firmware 05:16:05 on IOS 5.1.1. Does it qualify for this jail brake tutorial? Also, will it affect my service with my current phone carrier?

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Edd - September 22, 2012 at 8:10pm

I also want to know if this process qualifies to the firmware 05.16.05 on IOS 5.1.1

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Edd - September 23, 2012 at 5:21pm

I solved my problem lol, what i did on my Iphone 3GS was upgrade my modem firmware 05.16.05 to 06.15.00 Ipad baseband and then downgrade to 05.13.04 and installed ultrasn0w so i could unlock the Iphone and recognize any SIM inserted but i tested it on 06.15.00 and i was having low signal/no signal so i followed the steps here > http://iclarified.com/entry/index.php?enid=22652 but i think at first when upgrading to the Ipad baseband i put a check on the "Install Ipad Baseband" and i did the same process a second time to downgrade to 05.13.04 just that i put a check on "Downgrade from Ipad Baseband" the second time and it worked it showed i was on 05.13.04 so then i uninstalled ultrasn0w and installed it again now i can make calls and send msgs with my Iphone which is like more than the other on (Android).

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shedetails - September 25, 2012 at 10:25pm

Hi there: Can you take a look at my comment please? Because your situation is identical to mine. My struggle is knowing if I really need to tamper with the Baseband. Can you give some guidance. I think understand your success, but Im trying to see if the Baseband upgrade/downgrade is causing my epic fail :) Thank you kindly!

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eddpr89 - September 25, 2012 at 10:58pm

What u need to do in order to use any SIM is the process here > http://iclarified.com/entry/index.php?enid=22652 , i did it 2 times with the same firmware from here > http://www.iclarified.com/750 using this the first time upgraded my firmware to 06.15.00 and the second time downgraded to 05.13.04 but only cause i selected it in the redsn0w > jailbreak process so when i did it the first time i also installed cydia along with the Ipad baseband 06.15.00 and installed ultrasn0w from cydia (you need to add the source http://repo666.ultrasn0w.com in order to download ultrasn0w) then the second time i did the same but when i went to "Extras" in the redsn0w main menu i selected "Select IPSW" (i also did this the first time) and after that went to Extras again and this time selected "Downgrade from Ipad Baseband" after it did the whole thing i got the 05.13.04 but i uninstalled "ultrasn0w" and installed it again, after that i tested the SIM and it worked though mine is from T-Mobile and where i live it seems i still don't have 3G so it just shows an "E" its slower internet but at least works, btw you can contact me by email > edd9891@gmail.com i'll gladly help you out with any doubts :)

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eddpr89 - September 25, 2012 at 10:59pm

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eddpr89 - September 25, 2012 at 10:59pm

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Pete Buckley - September 16, 2012 at 5:32am

Didn't work at first but restarted Springboard without SIM in and only loaded it after the phone was completely up and was at the home screen. loaded SIM and it detected T-Mobile Thx Dev Team!!!

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Danny Green - September 13, 2012 at 5:57pm

tried unlocking as it said above but not finding network. anyone know a fool proof way of finding out why not?

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Marco Antonio - September 13, 2012 at 4:40pm

Thank you so much, the information was really helpful ´cause there are no technicians were I´m now.

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born2last - September 12, 2012 at 6:59pm

THANKS ALOT VERY INFORMATIVE I HAVE IPHONE 3GS 4.1 BASEBAND 05.13.04 ITS JAILBROKEN WITH REDSNOW AND UNLOCK WORKING FINE CAN I UPDATE/JAILBREAK TO 5.1.1 AND UNLOCK SERIAL NO IS XX022 PLS HELP BY SENDING ME EMAIL THANKS ALOT

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mancavn - September 7, 2012 at 5:44am

i follow instruction thru step 14, thay all look right but the iphone still not read simcard, it still shown no service on the top

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3GS Help - July 10, 2012 at 12:17am

Hello, I have a 3GS on 05.13.04 that was on 4.0.1 jailbroken and unlocked. I recently used redsnow to create a custom ISPW for 5.1.1, then used iTunes to restore to the new _BB_ IPSW. Everything seemed to go smoothly, however I can't get the phone to get any signal, even with an AT&T SIM and this is before I jailbreak it. I tried jailbreaking and using the "ultrasnow fixer for 5.1.1" before using "UltraSn0w" to unlock an still nothing.

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bisht - June 20, 2012 at 7:15am

how r u..? i am great..

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happy birthday - June 5, 2012 at 6:03pm

I want to share something which is pretty nice too.

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Fatcular - April 21, 2012 at 6:54pm

Does it work on tethered jailbreak? Is there any sim in the phone when installing Ultrasn0w? Please reply, I need help.

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