Hi all, I feel like I may be missing something about how SIM cards work here, but I’m unable to figure out how to load the ISIM application on my SysmoISIM-SJA2s, so I’m reaching out here for some help. I started with pySim-shell and listed the directories under the MF directory and it shows only ADF.USIM, so I decided to use shadysim_isim.py to list out the applications on the card and was shown this: AID: a0000000620001, State: 01, Privs: 00 AID: 4a6176656c696e2e6a637265, State: 01, Privs: 00 AID: a0000000620101, State: 01, Privs: 00 AID: a0000000620102, State: 01, Privs: 00 AID: a0000000620201, State: 01, Privs: 00 AID: a000000062020801, State: 01, Privs: 00 AID: a00000006202080101, State: 01, Privs: 00 AID: a0000000620002, State: 01, Privs: 00 AID: a0000000620003, State: 01, Privs: 00 AID: a000000062010101, State: 01, Privs: 00 AID: a00000015100, State: 01, Privs: 00 AID: a0000000090005ffffffff8911000000, State: 01, Privs: 00 AID: a0000000090005ffffffff8912000000, State: 01, Privs: 00 AID: a0000000090005ffffffff8913000000, State: 01, Privs: 00 AID: a0000000090005ffffffff8911010000, State: 01, Privs: 00 AID: a0000000871005ffffffff8913100000, State: 01, Privs: 00 AID: a0000000871005ffffffff8913200000, State: 01, Privs: 00 AID: a0000000090003ffffffff8910710001, State: 01, Privs: 00 AID: a0000000090003ffffffff8910710002, State: 01, Privs: 00 AID: a0000000090005ffffffff8915000000, State: 01, Privs: 00 AID: a00000015141434c, State: 01, Privs: 00 Instance AID: a00000015141434c00 The SysmoUSIM/ISIM manual pointed me to Annex E of 3GPP 101.220 which says the prefix of the ISIM application is A00..00871004. So my questions are: Am I missing something and the app is installed? If not, is there a way to load and install the ISIM application? Thanks in advance everyone.