3GS 16GB Unlocking help?

Can someone please tell me where I have gone wrong and how to sort this out.

I have an iPhone 3GS 16GB with the following settigns:

Version 3.1.2 (7D11)
Modem 05.11.07
Model MC131B

It is on Vodafone and I need to use it on 02, so I activated it using a Vodafone SIM and the used blackra1n to unlock it as follows:

Download blackra1n, connect iPhone to MacBook Pro, run blackra1n, iPhone restarts, run blackra1n on iphone and install cydia. I then take out Vodafone sim and put in the 02 sim, seems to work fine, can make and receive calls.
Turned phone off as wasnt using it then today when I turn it on the screen is giving me the USB to iTunes prompt. When I connect to my MacBook iTunes tells me the phone is in recovery mode and I need to restore, only I know if I restore it will update to 3.1.3 (which after limited reading I believe will screw up any chances of unlocking?). So only way to get it back running again is to run blackra1n and I am back in but I cant keep it like this just in case there comes I time I need to turn off my phone or if it dies on me etc.

Any ideas what I have done wrong and how to get this phone unlocked and working on 02?

Any help greatly received. Also help in baby steps would be fantastic as I am not too clued up on jailbreaking.

Thanks

Quote:

Originally Posted by Paulmack

Can someone please tell me where I have gone wrong and how to sort this out.

I have an iPhone 3GS 16GB with the following settigns:

Version 3.1.2 (7D11)
Modem 05.11.07
Model MC131B

It is on Vodafone and I need to use it on 02, so I activated it using a Vodafone SIM and the used blackra1n to unlock it as follows:

Download blackra1n, connect iPhone to MacBook Pro, run blackra1n, iPhone restarts, run blackra1n on iphone and install cydia. I then take out Vodafone sim and put in the 02 sim, seems to work fine, can make and receive calls.
Turned phone off as wasnt using it then today when I turn it on the screen is giving me the USB to iTunes prompt. When I connect to my MacBook iTunes tells me the phone is in recovery mode and I need to restore, only I know if I restore it will update to 3.1.3 (which after limited reading I believe will screw up any chances of unlocking?). So only way to get it back running again is to run blackra1n and I am back in but I cant keep it like this just in case there comes I time I need to turn off my phone or if it dies on me etc.

Any ideas what I have done wrong and how to get this phone unlocked and working on 02?

Any help greatly received. Also help in baby steps would be fantastic as I am not too clued up on jailbreaking.

Sounds like you have new bootrom, which means tethered jailbreak.

There is no free fix for this right now.

As you are in the UK, you can pay Vodaphone for a carrier unlock - then restore to OS 3.1.3 and swap sims as much as you want. Expensive but the only solution right now.

Thanks mate