Reverse 06.15.00 Unlock 3gs

[ustraveler]

I have an iPhone 3GS which currently unlocked. At this moment of time I am having issues with the phone.

The speaker sound is very low... I still have apple care on the phone but my problem is how do i restore the iphone back to it's old shape? I heard Apple detects the baseband and they can't do nothing about it. Is this true?

Thanks

 

[HPLouis]

I have an iPhone 3GS which currently unlocked. At this moment of time I am having issues with the phone.

The speaker sound is very low... I still have apple care on the phone but my problem is how do i restore the iphone back to it's old shape? I heard Apple detects the baseband and they can't do nothing about it. Is this true?

Thanks

You can't. All you can do is hope that the Dev Team comes through with a baseband downgrade. If not, then you'll have to wait for Apple to make a firmware with a baseband higher than 6.15.XX since you'll fail iTunes upgrades with that high of a baseband.