What's the latest firmware for LG GCE-8525B CD writer?

My CD writer is LG (HL-DT-ST) GCE-8525B. The firmware is version: 1.03. Pls advise what’s the latest version for this model. Also, pls advise how to flash the firmware of a CD writer. I’m totally new in this area. Thank you very much.

1.05 from here.

Read the instruction.