You have latest firmware.
As I understand the link, using the patched firmware will achieve +r/rw reading. If you flash, I doubt the 1712 will be able to read a 8x +RW.
I flashed my 1612 to J004 to get +r/rw reading.
If you are satified with the 1712, don't flash. You can use the Benq 1655.
The 1712 should be out of warranty many years ago.