What is the firmware version of the ASUS BW-16D1HT? Can I upgrade the firmware by myself?

The firmware version of ASUS BW-16D1HT is fixed at 3.0 version.
FYI. To avoid failure of reading 4K Ultra HD Blu-ray(UHD) Discs, the firmware upgrade function has been blocked.
You can not upgrade the firmware anymore.

Updated : Apr 18, 2019.