Channard (693317) writes "While there have been occasional reports of previous PS3 firmware upgrades causing system crashes and so forth, Sony's new firmware upgrade for the system, 3.41, is apparently stopping PS3 owners upgrading their hard disks, Slim PS3 owners at least. This problem has been encountered by many users on Sony's forums and occurs when you try to put a new hard disk into a PS3 that already has the firmware upgrade installed. The general course of action for upgrading a PS3's drive is that you download the latest PS3 firmware onto a memory stick and after swapping the hard drive in the PS3, plug the stick in allowing the PS3 to properly prepare the disk for use. But as of upgrade 3.41, the PS3 fails to recognize the firmware on the stick, complaining that it can't proceed until you insert the correct firmware. Repeating the process and re-downloading the does not fix the problem, as I can confirm, having encountered the problem myself.
Users can put the old hard disk back in, provided they've not reformatted it for some other purpose, so all is not lost. Sony have apparently told gaming website CVG that 'The information available to our Consumer Services Department does not suggest that this is a problem PlayStation(R) owners are likely to experience when upgrading the HDD with 3.41 update.' This seems to fly in the face of the currently available information — although whether or not this statement was issued by Kevin Butler is unclear. Either way, PS3 owners encountering this problem will likely have to wait a few days for a fix and use their old HDDs for now."