Thank you @RogerBannister and @Jokeyman123
So, my keyboard will not brick if I try to do either of those things right?
Yes, I agree with you that a manufacturer will never allow to do so but as we have seen in .TON files that just changing keyboard name in header allowed us to use files in both the variants.
Therefore, I was thinking if we could do the same for the firmware.
Also, I suppose the change of sustain(3000) button to touch(8000IN) is based on the firmware being used.l would like to know your thoughts as well. 🎹