Sony DW-U56A

I have seen similiar threads about people with Sony DW-U56A drive not bein able to write Dual Layer Media. I haven’t seen any solutions mentioned. I have a Dell C3284 which syys it’s a Sony DW-D56A but when the drive initalizes during POST it coems up as a U56A. Dell has software for the D56A but it won’t run since it thinks i have a U56A drive. I can modify the firmware to make it upgrad the U56A but I am not sure if this will harm the drive. I can’t find anything on Dell, sony or Liteon sites that even mention the U56A drive. Does anyone know if my forcing the D56A PDS7 firmware load is the right way to go?