I think you have just discovered the diffrence
The SP version of the firmware will not work on the TP player and vice versa.
The older players are TP versions.
The newer players are SP versions(the S refers to Samsung)
Due to slightely diffrent hardware in the new SP players they can not run the TP firmware.
As you installed the SP firmware and your player doesnt work you probably have a TP player.
To solve your problem connect the player to the computer install the correct version of the firmware. If the player isnt recognized by the comp try the DFU tools available on this forum too. With these tools you can acces the player and upload the new firmware.