SIM / USIM Development Course
The independent SIM development course that doesn't exist elsewhere: telecom/embedded engineers, new MVNO/IoT team members, QA/perso staff and career-switchers into cellular. Self-paced video + labs using the free tools on this site and a programmable test-card kit, with live Q&A. EN and PT cohorts.
Curriculum
Eight modules, each grounded in the specs and exercised on real tooling.
Foundations
GSM/3G/4G/5G identity model; UICC vs SIM vs USIM vs ISIM vs eUICC; ICCID, IMSI, MSISDN, EID and how they relate (hands-on with this site's parsers).
The card platform
Smart-card basics, ISO 7816, ATR, APDUs, T=0/T=1; command/response and status words (hands-on with the APDU tool).
The UICC file system
MF/DF/EF, structures, access conditions, key EFs (IMSI, ICCID, SPN, PLMN lists, service tables); reading a card with pySim/OpenSC.
Authentication & security
Ki/OPc, Milenage/TUAK, RUN GSM ALGORITHM / AUTHENTICATE; PIN/PUK/ADM; user-readable vs ADM-protected.
Provisioning & perso
From profile spec to perso data; ICCID/IMSI ranges; QA; common field-failure patterns.
OTA & applets
TS 102 225/226 secured packets (KIc/KID/TAR/SPI conceptually); STK/CAT proactive commands; Java Card + GlobalPlatform lifecycle.
The eSIM transition
eUICC architecture; SGP.22 consumer RSP (LPA, SM-DP+, activation codes); SGP.32 IoT RSP (eIM); TCA SAIP profile packages; what changes and what carries over.
Capstone
Read, decode and document a real card; design a simple profile; walk an eSIM activation end to end.
Format & lead magnet
Self-paced video + labs, a personalised support tier, and live Q&A. Module 1 (Foundations) is free as a lead magnet behind the email gate. Certificates on completion of the capstone.
Get the free module + SIM Explorer