: Use a tool like the eID Viewer to check if your certificates are still valid and "Trusted".
The computer's "Smartcard" service may be disabled, or the specific driver for the USB card reader may be corrupted or outdated.
Older software versions often trigger R225 when trying to read newer identity cards. My eID card reader is not recognised. What should I do?
Press Win + R , type services.msc , find , right-click and select Restart . 3 Check Device Manager
If the error pops up in a game or music app:
If you are seeing this error, try these quick troubleshooting steps:
Overprotective security software (like Avast, AVG, or Bitdefender) may block the smartcard service from accessing the hardware.
Unplug the USB card reader, wait 10 seconds, and plug it back in.
For users working with industrial measurement devices (like the ), R225 is a specific configuration register code.