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+--- Thread: Enable serial port on Raspberry Pi CM4 (/showthread.php?tid=1971)
Enable serial port on Raspberry Pi CM4 - admin - 06-07-2022
I also noticed sometimes UART is disabled in kernel. The enable it you need to check in /boot/config.txt the line enable_uart
If it's set to 0 like follow
enable_uart=0
You need to change to 1 as follow
enable_uart=1
And reboot of course!
sudo raspi-config
make sure disable Linux UART console