Dell Inspiron E6520 DVD tray unable to use after firmware upgrade from TS-U633J FW D800 to D600!!

Hi,

After installing the windows 10 and I tried to install back the driver, however I went to dell support website and try to download the DVD rom driver.

I did installed it but I realize the F/W not match! Now my DVD rom is no longer work.

Dell can you please provide the correct firmware?

The DVD rom that I have was TS-U633J/DEGHF Ver.J F/W=D800