I can't speak to whether this is common or not, but mine did not have a SN change when I had the replacement performed. Mine was sent into Apple via their mail-in service.
I can't speak to whether this is common or not, but mine did not have a SN change when I had the replacement performed. Mine was sent into Apple via their mail-in service.
Ok, but I seem to have heard that there was a second series with less 'dubious' graphics chips of the same type, and I wonder whether these made their way into the replacement programme. Thanks.