I tried to use the HEAD version of ROM and Emulator and got an error when changing the keyboard map to PT-BR.
Error string: ?ILLEGAL QUANTITY ERROR IN 12:
Line 12: 12 KEYMAP"PT-BR"
I cleaned everything and tried the MENU command.
Result: the keyboard mapping didn't change to PT-BR.
I tried the MENU again with EN-US keyboard,
Result: the keyboard mapping didn't change to EN-US.
Tried: KEYMAP"EN-US"
Result: Error string: ?ILLEGAL QUANTITY ERROR
I tried to use the HEAD version of ROM and Emulator and got an error when changing the keyboard map to PT-BR. Error string: ?ILLEGAL QUANTITY ERROR IN 12: Line 12: 12 KEYMAP"PT-BR"
I cleaned everything and tried the MENU command. Result: the keyboard mapping didn't change to PT-BR. I tried the MENU again with EN-US keyboard, Result: the keyboard mapping didn't change to EN-US. Tried: KEYMAP"EN-US" Result: Error string: ?ILLEGAL QUANTITY ERROR
Tried: KEYMAP"EN-US/INT" Result: Error string: ?ILLEGAL QUANTITY ERROR
Conclusion: the keyboard mapping is stuck at ABC/X16