Can apple tell if my phone has been previously jailbroken

[williamgallas10]

I need to go to the apple store this week for an issue with my iphone 3g. I used to have 3.0 beta 1 on my phone, then decided to go back to 2.2.1 jb. I restored my phone back to 2.2 using quickpwn. My question, is my phone now completely rid of the jailbreak? It says 2.2(5G77) in settings. Thanks

[fishkorp]

If you went from 3.0 to 2.2.1 you still have the 3.0 baseband on there. Depending on how deep of a diagnostic they do, they can tell you had 3.0 and the ONLY way to go from 3.0 to 2.2.1 is to jailbreak. So yes, there's a very good chance they'll be able to tell.

[williamgallas10]

In that case Ill just wait for 3.0 release, install that before heading to the store.