UltraSn0w, how can you tell if it is working?

[nutsnbolts]

With all (perhaps only one) the baseband downgrader utilities in Cydia, I never really downgraded anything but just installed Ultrasn0w after jailbreaking my 3g iphone that is 3.0 firmware.

I'm travelling tomorrow and I don't want to get caught off guard when I pop the country's sim card in and it doesn't work.

Any surefire way to tell if Ultrasn0w will definitely work without actually having another sim card on hand?

[jav6454]

If another SIM card works with your phone other than the official carrier's SIM, then UltraSn0w is working.

[The General]

Put a T-Mobile SIM card in your phone and see if it works.

[nutsnbolts]

guys I said, without having a sim card, is there a way to tell if it's going to work.

I guess the question is, do I need to downgrade the baseband?

[Moi un Mouton]

guys I said, without having a sim card, is there a way to tell if it's going to work.

I guess the question is, do I need to downgrade the baseband?

No you don't.

If you did everything right it will work. The acid test will be when you get there - unless you have friends here on a different network, and can just pop their SIM in as a test.

[The General]

guys I said, without having a sim card, is there a way to tell if it's going to work.

No. Just ask one of your friends with T-Mobile if you can test it in your iPhone.