Another example
Sony had about 5 internal revisions of their Fatty PS3 before finally changing the outside case.
Anyone who has had to replace a logic board or similar internal will find that the revision numbers are rarely the same (and often the board looks different in other more obvious ways). This may involve simple PCB rerouting or the use of slightly different peripheral chips. This is not unique to Apple, it happens in the auto industry, as well as many other consumer electronics manufacturers.
Issues come up, engineers re-design, and a revision is pushed to manufacturing. But, the iP4 antenna problem is such a hot-button issue that much more is being made of the supposed HW revision than any other time in recent memory.
Yeah, sucks for the customer when the carrier and manufacturer can just shift the blame, huh?![]()
Sony had about 5 internal revisions of their Fatty PS3 before finally changing the outside case.