Did you enable and start the service?

systemctl enable pcscd.service

systemctl start pcscd.service

That’s what worked for me. Maybe try reinstalling pcscd if that doesn’t work.

Enable the PCSCD service. This happened to me after updating Arch yesterday. You’ll find details on the Arch Wiki if you search for ‘yubikey’.

Interesting. I hadn’t heard about this. I got this response from Xiaomi earlier today after complaining they mis-sold me a phone as their unique selling point was the ability to unlock the bootloader.

“We hope you could understand, that such an operation will disable some of the built-in security features of the system, and those security features are part of what keeps the operating system safe and your data secure from exposure or corruption. And this misuse will void your phone’s warranty and it may render your phone useless depending on the security measures in place on your phone.”