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

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Comments (1231)

ahmadswati - October 9, 2012 at 7:10pm

i am so so grateful to u all.... thanks a lot..... it really worked and i am out of trouble now

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Galoper - October 6, 2012 at 3:53pm

Hi, i've a 3GS with iOS 4.1.. in the past i change my baseband to 06.15.00 to unlock.. but now i change again to with redsnow and my phone work perfectly.. but i wanna update to iOS 5.1.1 and want that my phone still unlocked.. what i have to do ? if i upgrade to 5.1.1, jailbreak it and then unlock with ultrasnow, still works ? tnks!

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MasTerDaYs - October 7, 2012 at 11:10am

you alreafy can downgrade your ipad baseband: http://www.iclarified.com/entry/index.php?enid=22652 then jailbreak it with redsnow: http://www.iclarified.com/entry/index.php?enid=20522 it worked for me, I have an old bootrom 3GS(4th an 5th digits of serial number are below 40(iphone production week)) After Jailbreak just insert the sim card and connect to a wireless network to activate it ;)

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MasTerDaYs - October 7, 2012 at 11:10am

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Mikepole - October 3, 2012 at 11:46pm

I would also like to give a big thank you to the development team. You guys are awesome and deserve much praise.

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nesreen - October 2, 2012 at 5:25pm

please i need your help , i have iphone 3GS with firmware 06.15.00 and i tried all the above steps then inserted my Sim Card but didnt work .... what shall i do please ?

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SheDetails - September 25, 2012 at 10:17pm

Hi Im new here, but a true Do-It-Yourselfer. I need help pretty please! My phone info/status is as follows: Network: Not Available Version: 5.1.1 (9B206) Carrier: Carrier 12.0 Model: MC555LL Serial: QR2077QSEXX Modem Firmware: 05.16.05 Questions/Help Needed: 1. Does my phone even qualify for the jailbreak and unlock? I used redsnow to jailbreak and everything processed with no errors. Cydia was loaded onto my iphone, opens up fine, etc. But I still feel uncertain because when I stick my tmobile sim card into the iphone it continues to say Searching, yet it lets me know I have a voicemail now how is that?? 2. Do I have to downgrade the BB in order to get things working correctly? I never touched the Baseband, because there was nothing that ever really said Mandatory or Required. :) Any quick help or guidance would be great! Thank you in advance.

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MasTerDaYs - October 9, 2012 at 11:34pm

you're baseband is locked...is it a 3GS? becuz by the SNR it has a new bootroom and that means that if you upgrade the BB to Ipad version 06.15.00 you may not be able to downgrade it to unlock using the procedure described here: http://www.iclarified.com/entry/index.php?enid=22652 then jailbreak it with redsnow: http://www.iclarified.com/entry/index.php?enid=20522

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MasTerDaYs - October 9, 2012 at 11:34pm

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mulje - September 24, 2012 at 2:33pm

i update my iphone 3GS to ios 6.0,when i finished updating it shows me that THE SIM CARD INSERTED IN THE IPHONE DOES NOT APPER TO BE ACTIVATED,PLEASE INSERT THE SIM CARD THAT CAME WITH YOUR IPHONE OR VISIT A SUPPORTED CARRIER STOTE TO REPLACEMENT SIM CARDplease help me, what i can do now?

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Juan - October 2, 2012 at 5:12am

i have the same issue of upgrading to iOS 6 and didn't recognise my SIM, what can I do? is it possible to downgrde it even without it being "active". like from software? Thanks for your help

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Rikab Kothari - September 23, 2012 at 5:05pm

My iphone3gs is already jailbroken. I am having Version 4.1. Now I want to upgrade it to iOS6. But the issue is as you know we cannot upgrade jailbroken iphone using iTunes. Now as I have followed the above steps will I be able to upgrade my iOS to iOS6? Please help!

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mulje91 - September 21, 2012 at 5:18pm

hi,i update my iphone 3GS last night,when i finished updating it shows me that THE SIM CARD INSERTED IN THE IPHONE DOES NOT APPER TO BE ACTIVATED,PLEASE INSERT THE SIM CARD THAT CAME WITH YOUR IPHONE OR VISIT A SUPPORTED CARRIER STOTE TO REPLACEMENT SIM CARDâplease inform me what i should to do to above in email.

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chik - September 21, 2012 at 12:15pm

thanks so much.. i've successfully keep my 3gs alive again..fuhhh..

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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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