This is very odd ... and might indicate some system/filer driver configuration issue ...
Your drive is definitely a BDR-206 and uses the older 1.04 firmware. If your drive has a standard bezel then the BDR-206 1.06 firmware updater should work. If your drive has the posh looking shiny bezel, then it is a BDR-S06 (which in Windows also identifies as BDR-206) and if you use that particular 1.06 firmware updater, that should do the trick.
If none of the two work, then you either have a system configuration issue blocking the update, or you might have some weird OEM drive.
We can find out exactly which OEM drive you've got if you download and run (from the command line) DVRFlash (http://dvrflash.rpc1.org/):
Run it (from the command line) with the following parameters and press y when prompted:
dvrflash g: -v
What you'll see is something like this:
Description : PIONEER BD-RW BDR-206
Firmware Rev : 1.06
Firmware Date : 11/04/18
Manufacturer : PIONEER
Drive is in normal mode.
Additional Drive Information:
Serial Number :
Interface type : SAT
DVR generation : 1030
Kernel type : GENERAL
Normal type : GENERAL
Kernel version : 0003
Status : RPC-2 (region locked)
Region : none
Changes : 5 region changes remaining
The kernel type will tell us exactly what OEM flavour you've got ...
Do you have any drive emulation/virtual drive software installed (Alcohol, Daemon Tools, etc)? Did you install/uninstall any burning/virtual drive software around the time your drive started to fail by any chance?