Solved
NGamaBest answer
Associate II
Oct 28, 2019 1:13 PM UTC
So my problem was that after the line "firmware delete finished" it didn't do anything. I used a Mac. After a whole lot of trying debug and fix the problem checking the option bytes, I tried upgrading on a windows computer and it worked right away. This means that there wasn't any problem with the boards, rather with the Mac version of the STM32CUBEPROG.
