Re: grcardsim: fails with "bad echo value"

you need the exact matching utilities / APDUs / scripts to configure the specific card chip / OS that you have in front of you. Reading ETSI/3GPP specs won't help you, as those documents only describe how the card is used after production/provisioning. What happens with the card during production/provisioning and using what commands/protocols is completely outside of any public/interoperable specification. -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)