help to upgrade to 2.2

[steelrose]

Hi
i have a jailbraked iphone 3g which uses something like turbosim to unlock it for my country.now i ordered another kind of turbosim in order to work on firmware 2,2 as my current one does not work with 2.2.well my question is:
howi continue?
i will update with itunes to 2.2 and after i jailbreak and unlock my iphone with new turbosim?
and if sthng goes wrong how do i downgrade to 2.1 ?
regards

[ALL DAY]

There's a software unlock now for 2.2 called Yellosn0w, available via Cydia. You can just jailbreak with Quickpwn and install the Yellowsn0w package and you'll be unlocked; no SIM adapter needed.

[aelole]

you are right.although its risky to software unlock it.but turbosims are not the best way either...

[ALL DAY]

^LOL. How so? A restore will fix almost every common problem...