Ops...Sorry. No, no difference. You can check in a hex editor if you wish. No problem at all. Just yesterday I was hurrying and forgot to remove the useless 0xff bytes at the end of the main FW before merging it with boot.bin. I just have a full dump of the region and...It doesn't matter. I should pay more attention. :) Thank for providing the files. I have reploaded them in the OP. Again Noeman is the only place. :)
Can you write what is the difference between 3.20, 3.30, 3.40? Something significant? No one can answer me that question.