djkasak,
There is no way of knowing what version firmware your player used as you have flashed it and it is gone.
I suggest you go to the Firmware Download section
HERE and download all recent firmware uploads.
Using s1res
HERE open each of the .bin files you downloaded and find all the ones that have the same menu images, boot and shutdown images that your player had, these are your best bet at finding a suitable dump file.
If you have followed the DEAD PLAYER RECOVERY GUIDE and taken your player to Recovery Mode, then updated with one of the full firmware then you can start uploading the firmware you have checked with s1res.
If none of them work then try a different full version firmware and then try the dump files again.
If you kill your player doing this you need to put you player into recovery mode again by shorting the chip.
Some of the firmware that has been uploaded to site have not been repaired so it is a good idea to put them into s1fwx folder rename them dump.bin and run repair.bat before trying them otherwise they will give you an error message.
Do not try and repair the full version firmware or you will destroy them.