[Problem] Locked myself out

OK, thanks for the feedback!

Extract your original bios according to this guide which you obviously already used:

After step 8 (having closed FIT) exchange - in addition to the guide - the file BIOS Region.bin in the Decomp folder with the attached file.

BIOS Region_109_DVAR.zip (5.0 MB)

Contiinue the guide to the end, follow it to the letter. The resulting file is a stock bios 1.09 (same version as your original bios) with your machine specific data copied.

Please post the resulting file!