sibbl, The problem is you have not found a firmware to suit your player. Because you do not have a backup of your original firmware you will just have to try random firmware until you find a compatible one. This could be 20 - 30 - 50 ......
Do not pay to much attention to the version numbers as they have become a little meaningless, some firmware that shows as 3.2.16 on the player can read as 3.5.37 with s1fwx.
If you have not done so already read the Dead Player Recovery Guide
HERE so that you understand what you may have to do to recover your player.