NSS is not able to read the code, but there is a solution:


--erase-user-data=secure also clears the security code when you add that parameter to full flash command. Flashing with that argument will take around 10 minutes.

PS. this question about resetting security code with --erase-user-data=secure was already answered in previous threads in this forum, so please use search before re-posting the same questions again.