Hello everyone! I’m trying to write x509 cert to my Nitrokey Start. But it’s failed. gpg/card> writecert 3 < cert.cer gpg: error writing certificate to card: General error Neither PEM nor DER format, I’ve tried to do this with pkcs11-tool but it’s failed too. I’m using gpg ver 2.2.6 and 2.1.11 …

Hi @alekzoid ! Sorry for the delay. I tried to import your certificate on latest GNUK, but with no effect. I have registered Start#10 to follow this further.