Was there a confirmed "bad batch" of iPhone 3Gs?

[OCDMacGeek]

I vaguely recall that there was once speculation that certain production batches of iPhone 3Gs contained an "immature 3G chipset" that caused bad reception issues. I don't recall whether this turned out to be true or just idle speculation. Were the reception issues actually taken care of in the 2.2 software update?

I am purchasing an iPhone 3G off of Ebay, and the seller purchased the phone in September 2008. Obviously, this doesn't in and of itself tell you anything about the production batch that it was in, but I wanted to check-in to confirm that there are no known issues with certain iPhone production batches.

Thanks.

 

[TheSpaz]

There was no bad batch with bad 3G chips. Everything was fixed with software updates. I have no problems using 3G and my calls never drop. You'll be fine.

 

[Knowlege Bomb]

There was a similar thread concerning the plastic backing being more brittle on earlier models of the 3G. I don't know if a certain factory or week # was singled out but you may want to check into that.