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This tutorial is about unlocking iPhone 3G firmware 3.1 via Ultrasn0w. iPhone 2G users can unlock and jailbreak their iPhone using PwnageTool here. As far as iPhone 3G users are concerned, they are requested to wait until Dev-Team releases a new version of Ultrasn0w to unlock iPhone 3GS.
Important : Before you may proceed all iPhone 3G users are requested to check their baseband version by the guide posted here
Update : Download Custom IPSW For Firmware 3.1 On iPhone 2G And 3G [Windows Users]
Steps To Unlock iPhone 3.1 Via Ultrasn0w
- Download and install iTunes 9
- Make backup of your iPhone's data through iTunes. Click on the name of your iPhone on the iTunes sidebar on the left and click backup button
- Now follow these steps to jailbreak your iPhone 3.1 firmware 3.1 on iPhone 2G and 3G using PwnageTool
- Once you are done with the above procedure you can unlock your jailbroken iPhone using Ultrasn0w 0.9
- Start "Cydia" on your iPhone.
- Touch on "Manage" tab on the bottom.
- Now touch on "Sources" as seen in the screenshot below:
- Touch on "Edit" and then on "Add". You will be prompted to enter a url source as seen in the screenshot below. Type "http://repo666.ultrasn0w.com" and touch on "Add Source"
- Cydia will now automatically update your sources by following a series of automated steps
- After installation is completed. Search for "Ultrasn0w" in Cydia and install this application (T-Mobile users should disable 3G before installing Ultrasn0w). This app will automatically unlock your iPhone so that you can use it with any carrier.
- Restart your phone. Yup. Now you have got fully unlocked and jailbroken iPhone firmware 3.1 on your iPhone 3G
Thank you for posting this! I upgraded my 3G from 3.0 to 3.1 with Pwnage 3.1, but noticed that cellular service wasn’t working (using Orange in the Middle East). Reading through you post, I realized that my G3 was only jailbroken and not unlocked. I followed your steps and now I’m unlocked and making calls. Thanks!
iPhone Dev Team is great with what they do. But explaining things is definitely not their strength.
Hey i tried adding this source on cydia and installing it and it all worked but my phone says no service still, I got an iPhone 3g jailbroken on 3.1 firmware, any help?
I’m in the boat as Matt.
I’ve done the procedures to jailbreak and unlock my iPhone 3G 3.1
I’m getting the Cydia and Icy icons but I cannot get a service with any SIM card (I’ve tried 3 so far).
“No Service” is shown in the top left corner where “O2 UK” used to be.
I keep getting “Unable to load network list” when I check the “carriers” list in Settings (it’s set to automatic and won’t change).
Any ideas appreciated.
well the problem is that ultrasn0w dosent unlock the 3.1 version for the iphone so like ive been getting i guess we have to wait around for devs team so…………..
If you iphone was initially updated to 3.1 through itunes and not through pwnage. Then your baseband has been upgraded to the 5.11.07 baseband> so you can only jailbreak and not unlock phone. I found this out the hard way. Only certain phones manufactured by iphone before 2008 can get their baseband downgraded and therefore unlock the phones with the unlcok software> so we are all stuck untill that is rectified if ever. PS
ive got the same problem as Matt and JR, ive done the jail break and ive got the Cydia icon but no icy one ?
im using a 3G 3.1 8GB iphone
its comes up with searching but wont find any network (im on 02) in the UK. and when i check the carriers it comes up with can’t find carrier list….
So I did this and everything worked but now it’s stuck on searching for signal and carrier is set to automatic and it’s also telling me that it’s unable to load network list, why? Help please !!! I’ve gotten so close to fully unlocking my phone :/
Oops, forgot to add this.
When I check on general where it says “about” it says the sim card name on it so I guess it’s reading it but I’m still not getting any signal. It says searching. any suggestions?
Exact same issue here??? iPhone 3g 8GB 3.1 05.11.07 and just continuously shows “searching”. Any suggestions?
http://www.youtube.com/watch?v=9exOVWRCgh8 will help
WeLl i aCcIdEnTaLlY uPgRaDe mY IphOnE 3g fRm 3.0 tO 3.1 wItH BaSe bAnD 5.11 …..N mY WiFi iS GrEyEd oUt mEaNz nO WiFi ……AnY SuGgEsTiOnS >? pLzZz hElP iTs lOcKeD
I did the following and it worked perfectly for me.. I lost full network service and regained it all and am running the following;
1. iPhone 3G 0S 3.1
2. Fully unlocked + network funtionality on 3.1
3. ROGERS (CANADA) Network 3G WORKING.
Download CUSTOMER .IPSW off PirateBay
http://thepiratebay.org/torrent/5104679/Unlock_iPhone_3GFirmware_3.1_on_Windows_-__Sizlopedia
Then using ITUNES 9.0 I did a SHIFT-RESTORE to that firmware.
-First off I lost network service but it installed (with a cydia icon working cydia hack right off the bat).
Finally, I downloaded the cydia.hackulo.us source and added 3.1 Sync etc.
I also downloaded to RESTORE NETWORK FUNCTIONALITY -
- http://repo666.ultrasn0w.com
AS PER ABOVE.
I installed, it prompted for REBOOT of device. Once reboot completed I had full network again and I am rocking a 3.1 Unlocked / Jailbroken Device.
THANKS ALL and I hope the info helps!
ONE MORE THING.
If the Network under Settings simply shows as searching … I am not sure if that works for you but my phone still has 3G service and runs on Rogers just fine.
But mine as well simply shows SEARCHING if I click on Network, however that might be due to only having Rogers service (which is the same as FIDO) offering service in Canada..
Not sure, but the above worked to resolve all issues for me.
When updating the the iphone 3G to 3.1 it changes the baseband.The Dev team havnt yet found a hole to unlock the iphones with this new baseband. All we can do is wait untill ultrasn0w is updated! It sucks i know but the instructions should of been read really. lol im in the same boat.
People have to be careful when talking about “jailbreaking” and “unlocking” they are 2 very different things.
Anyways, I have an issue. I have a 3G that is jailbroken running 3.0 firmware, and unlocked using ultrasnow. I have read that re-locking the phone might prevent it from ever being able to unlock it again.
Is there a tool to upgrade it to 3.1 firmware without having to lock it? For example just jailbreaking it all over again but the with new 3.1 ISP. In other words how do I upgrade my firmware without worrying about it changing my baseband?
Thanks! It worked
Just an advise for your guys, I m seeing that many of you are getting confused b/w jailbreaking and unlocking! Both are different things, jailbreaking is actually a pre-requisite of unlocking…
Dear Visitor,
Please do reply to above mentioned queries if you have encountered any of above problems and you know the remedy, this is the only way you guys could help each other, since there are numerous different types of problems users are facing.
Happy Downgrading/Unlocking
Have a question for the group. I have managed to jailbreak 3.1 phone, however, wifi on phone does not work so I am struggling to figure out how to get latest ultrasnow on device. Can anyone help?
My iphone is 3g with 3.1 with a baseband of 5.11.07. Is there a way to unlock it?
Suggestions for those having various issues.
1. What modem are you on? 5? then you can downgrade to a 4 (if you really want to get your device working) and then the Ultrasn0w will work for you.
2. Those that have mistakenly updated to 3.1.2 you can install phone with the original 3.0 with redsn0w and then do same with itunes with same 3.0 and then itunes with a stripped 3.1 firmware. Afterwards do step 1. your device should work just like mine, 3g devices that is…
Hi
1.i have upgraded iphone 3g to latest 3.1
2.now i noticed that it is unlockable
3.i read your post
4.so i downloaded custom firmware for 3g 3.1
5.now when i try to restore the iphone to custom firmware .it gives the error 1604
6.Phone is not accepting custom 3.1 but original 3.1 is acceptable.
7.i want to unlock /jalbreak
8.plz tell me how to flash custom firmware.
I am having promblems with Ultrasnow. I am jailbroken running 3.1 and downloaded Ultrasnow as soon as iphone 3G rebooted I either have searching or No service with Bars and I have wifi now I can get email but when I try to go on Cydia it kicks me out. I cant make calls or text UUUGGGGGHHHHH. What is the deal? I fear I am going to have to restore my whole device and rejailbreak my iphone but I wont use ultrasnow. If there is an easier way help me
OK I’m totally confused!!!! I have upgraded and I think jailbroken and unlocked my 3G to 3.1 firmware and get No service with carrier set to automatic and unable to change – as per previous posts BUT I can;t work out what the solution is!!! I have tried various options with no success so now have a useless phone! In simple terms how do I fix it? Please help?!!
Why are you guys causing yourselves headaches? Why aren’t you using blackra1n?
blackra1n is only for jailbreaking, it change your iPhone baseband and then you won’t be able to unlock ur iPhone (This is if you are on non-official carrier services)
hi guys,
i want to write to those who think they have a useless iphone that says “no service” and stuck. well…it happend to me too when i wanted to unlock my iphone 3gs (using ultrasnow) which is in 3.1.2 fw and 5.11.7 baseband…and 6.04..but failed..and was about to cry cause i was stuck with a bricked phone..but i the went back to cydia (MINE WAS JAILBROKEN WITH BLACKRA1N BTW) and then removed ultrasnow..and rebooted…it now works…i can use my phone again…its NOT UNLOCKED! but i can atleast use it again…i hope i helped atleast one guy who was in the same boat as me…
In my iphone There is no Cydia installed so how can I jail break iphone 3g on 3.1 firmware ??????????????/