I was able to change the PIN retry attempts on my Neo following the instructions here:
https://developers.yubico.com/ykneo-ope ... tries.html. The same does not work for the YK4. Is there a way to set the number of retries with the YK4?
Here's what I get when I try:
$ gpg-connect-agent --hex
> scd apdu 00 f1 00 00
D[0000] 04 02 07 90 00 .....
OK
> scd apdu 00 20 00 83 08 31 32 33 34 35 36 37 38
D[0000] 90 00 ..
OK
> scd apdu 00 f2 00 00 03 05 05 05
D[0000] 6D 00 m.
OK
The admin pin is still set to the default.