MCU fails to run

General Discussion
4

tried, but does not help
LINK

still

pi@raspberrypi:~ $ ls /dev/serial/by-id/*
ls: cannot access ‘/dev/serial/by-id/*’: No such file or directory

pi@raspberrypi:~ $ lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 11 (bullseye)
Release: 11
Codename: bullseye

pi@raspberrypi:~ $ cat /etc/apt/sources.list
deb Index of /debian bullseye main contrib non-free
deb Index of /debian-security bullseye-security main contrib non-free
deb Index of /debian bullseye-updates main contrib non-free

Uncomment deb-src lines below then ‘apt-get update’ to enable ‘apt-get source’

#deb-src Index of /debian bullseye main contrib non-free
#deb-src Index of /debian-security bullseye-security main contrib non-free
#deb-src Index of /debian bullseye-updates main contrib non-free
deb Index of /debian bullseye-backports main non-free contrib

my firemware.bin on the sd card was renamed to old.bin, I think flashing did work.