Sim Card Explorer High Quality

SIM Card Explorer — Feature Specification

Purpose

Provide a tool for power users and technicians to inspect, analyze, and manage SIM card contents and metadata securely.

2.2 Relevant Standards

| Standard | Title | Relevance | |----------|-------|------------| | ISO 7816-4 | Interindustry commands for interchange | SELECT, READ BINARY, UPDATE BINARY | | 3GPP TS 51.011 | Specification of the SIM for GSM | GSM-specific EFs and commands | | ETSI TS 102 221 | UICC-Terminal interface | File types, access conditions | | 3GPP TS 31.102 | Characteristics of the USIM | 4G/5M application | sim card explorer

A SIM card explorer is a specialized software or hardware-software system designed to view, edit, and analyze the internal file structure of a SIM, USIM, or R-UIM card. Unlike a standard phone interface that only shows contacts or messages, an explorer provides deep, "flow-level" access to the card's directory tree, including hidden or non-standard files. Core Features of SIM Explorer Tools SIM Card Explorer — Feature Specification Purpose Provide

• Manufacturer-specific (e.g., SIMalliance Toolbox, Gemalto Admin Suite),
• Forensic-only (e.g., Cellebrite, XRY) with high cost and legal restrictions,
• Low-level command-line (e.g., pySIM, SIMtester) requiring deep technical expertise.

Minimal Viable Product (MVP) Scope

• SIM Detection, File Browser (read-only), Hex & Structured Views, APDU Console (read-only), Export to JSON/CSV, PIN counter display, USB reader support, and basic help.

While the hardware "card" format is fading, the concept of exploring the SIM remains vital. Tools like EasyLPAC (for eSIM LPA) are the spiritual successors to the physical SIM Card Explorer. Manufacturer-specific (e