Here are the Card Manager Keys used for the cards we gave during the competition, so that you can load/delete applets on the card :
MAC_KEY : 20B2734C890D9F043208810E063B25D6 ENC_KEY : 1A1C5481DDF4A91D5AD25352846EFDF1 KEK_KEY : 065F678AC7C5EB46BC0DEA1ECCF1F03C
Make sure you use -keyver 1 and delete the previous applets as follows :
mode_211 enable_trace enable_timer establish_context card_connect select -AID a000000003000000 open_sc -security 1 -keyind 0 -keyver 1 -mac_key 20B2734C890D9F043208810E063B25D6 -enc_key 1A1C5481DDF4A91D5AD25352846EFDF1 -kek_key 065F678AC7C5EB46BC0DEA1ECCF1F03C // Open secure channel delete -AID 414343455353 delete -AID 4f4c44434443 delete -AID 42454e505952 card_disconnect release_context
Ref: https://www.nsec.io/2013/04/setup-a-java-card-for-security-purposes/