Well, semi-correct. The Pandora battery was basically a way to force the PSP bootloader to copy whatever is contained on the memory stick directly to the firmware. So again, the firmware was not backed up on the PSP, but it allowed you to flash anything to the PSP.To be fair this was possible on the PSP via a Pandora Battery. On the other hand were this possible on 3DS, firmware wouldn't be such an issue.