Mac OSx86

strange – T-mobile (US) carrier was showing briefly – but now it’s gone again. reinserting SIM shows INVALID SIM …
any idea? I think I did everything right – otherwise T-Mobile carrier iamge would not have displayed. Trying “yellowsn0w -q” shows resource busy. Any idea, here for US T-Mobile? Thanks!

Wolf, there is a new update 0.9.4, I would suggest you try it.
Remember it’s beta software ;)

Iphone Unlock SuccessI – Tmobile US

Assuming your iphone is jailbroken, you have cydia and installer on it.
If not get latest firmware 01/01/2009 (2.2_5G77) and jailbreak with quickpwn2.2(pc) don’t know macs. pawnage tool

1. Go to bossprefs from cydia search and install
2. n bossprefs disable 3g edge everything
3. Reboot using bosspref

4. install yellowsn0w using Installer4 with at&t sim in phone
(http://i.yellowsn0w.com/ ) is the source that has to be added in Installer4
1. Open installer- bottom right hit Sources- top right EDIT- top left hit [+]
2. http:// is there, type in- i.yellowsn0w.com Hit [Done]
3. Yellowsn0w is a new source select it
4. Install …..continue

5. When asked to reboot go to home n reboot using bosspref
6. When phone on at lockscreen insert yo desired sim
7. Go to settings>general>reset>reset network settings (it will reboot)

Your desired sim should work n 30 sec (you should see searching)

if not Go to settings n reset network settings n reboot with boss again.

Note: older sims seem to work no problem. newer sim can’t make out going calls but get in/out sms and incomming calls.

my iphone 3G version 2.2 is already jailbreaked and followed your instruction on how to install yellow snow but after putting the sim that i want to use, nothing happens. Only …… appears on the top left portion of my phone and it won’t work. Can you help me on this please. I am from the Philippines and my phone is locked to Globe. How can I use other sim card from another provider.

Hey brusco man, first always check you are running the latest version of yellow snow, updates are coming out fast since it’s a beta release. You should check version 0.9.5 now !

Also, if you still have issues, you can report it here : http://report.yellowsn0w.com/index.php

Before you submit, check if someone already reported you issue.
Best of luck!

hey thanks for your help man…i followed your intructions on http://report.yellowsn0w.com/index.php and turned on and of airplane mode. After 3 attempts, my phone is working perfectly right now…you have been a big help..thanks again…

Big Problem – what do i do if i dont have the initial sim card that came with the phone?

thanks,
steve

steve, we have users that reported they succeeded with their own SIM card, you should try and report back. The original SIM card might not be a requirement after all.

Good luck !

Wow – for literally no reason, it decided to work. ( I was playing around with Airplane mode)

VICTORY !!!!!

Worked for me first time! No issues moving from UK O2 to Vodafone or Orange SIM now. Great!

I done the unlock, it’s work but is unstable.
when I try to call sometimes it’ll cut off itself, when i see the status is showing airplane mode after that back to searching then back to my Maxis line which is using in malaysia here.
any idea what’s going on?

Guys it works BUT

I would suggest waitin a few weeks as it’s still very beta.

The problems:

Call cut offs
Refreshing of finding a network can randomly happen
The iPhone become unstable at times
My iPhone takes longer to boot

I’m sure in a few weeks it will become stable and still.
You can though uninstall very easily and u wouldn’t no u had applied the patch

Good luck

My dad works for apple, and worked with several others who created the iPhone

I over heard that apple already have then next update of 2.3 which when u apply the yellowsn0w patch you will corrupt a kernel which will enable your phone to function.

So don’t update to 2.3 when it arrives unless, the dev team release a patched 2.3 restore file to download

And somewhere in the limelight to is a new apple phone being developed.

YellowSn0w 0.9.6 is out, check it out !

Apple friend, what do you know about that iPhone being developed ? :-)

I installed apples 2.02 update by mistake thinking it was the 2.2 update well any way the phone locked I got it to unlock but now I have no cydia, or installer on my phone HELPPPPPP Please!!!!!!!! all app’s that I previously loaded are on the phone and running. THANKS

updated the firmware to 2.2 through iTunes, used Quickpwn with previously downloaded firmware, opened Cydia and updated YellowSn0w to 0.9.6, installed, rebooted the phone, switched the sim from O2 to T-Mobile and “ganz egal” – everything works! and now i’ve got “peanut butter jelly” ringtone :-)

everything went like clock work…works gr8! so glad to be rid of that damn turbosim crap!! thank you.

Great iCeman!

And remember do not update to the new firmware 2.2.1 yet !
It would fix the exploit used by YellowSnow to unlock your iPhone.

http://www.macgeekblog.com/blog/archive/2009/01/28/apple-ripost-to-3g-unlock-iphone-221-firmware.html

few weeks ago my iphone got stuck and i had to install everything again.
by mistake i tunes upgrade the phone to the 2.2.1 version.
I tried to install yellowsnow but dosn’t work.
how can i go back to the 2.2 version and make it work???
thanks to everyone that will help me

thanks for all the info—i’m trying to use a boost mobile sim card on an iphone 3g and nothing is happening i downloaded yellowsnow 0.9.8 and 2.2.1 also respring…and nothing please help!!

Does anyone know if the last version of yellowsnow works with 2.2.1???? Please someone answer me!!!

Zonello. No it does it not. I think yellowSnow will only upgrade their software adter iPhone 3.0 is released on Wednesday and then you will have to wait 6 months. After iPhone 2.0 software was released last June we had to wait to January this year to get yellowSn0w

Tried 2x with yellowsn0w from apt9.yellowsn0w.com, it didn’t do anything what so ever, so I added http://repo666.ultrasn0w.com to my Cydia sources and from there installed ultrasn0w and BINGO!!! So if anyone has problems has problems with yellowsn0w … try ultrasn0w, it will surely do the job.