I need to update the firmware of a fan for the RPi4 and given the
below instructions in Raspbian. I also installed
sudo dnf -y install i2c-tools
sudo dnf -y install python3-i2c-tools
but the firmware update fails. I guess, it is because of the serial port not being
enabled. Any advice?
Can you actually link to the hardware and the instructions you're
attempting to follow/convert, it saves people actually trying to
guess/interpret what that may be.
Thanks, Thomas
In order to use bootloader, user need to have activated and free Serial Port on Raspberry
Pi®. The below
procedure is showing how to make sure that Serial Port is free and available for
Bootloader process.
sudo raspi-config
Select -> Interfacing Options
1. IC Kernel ON
2. Serial option to enable UART
Then it will ask for login shell to be accessible over Serial, select No shown as
follows.
At the end, it will ask for enabling Hardware Serial port, select Yes,
Then, reboot the Raspberry Pi®!!
I take it they're the details for Raspbian?