python libraires and command line tools for SIM/UICC/USIM/ISIM card analysis and programming.
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Harald Welte b18c7d9be0 saip.personalization: Fix encoding of ICCID in ProfileHeader
To make things exciting, they decided that the ICCID in the profile
header is encoded different from the ICCID contained in EF.ICCID...

Change-Id: I5eacdcdc6bd0ada431eb047bfae930d79d6e3af8
2024-02-21 09:23:58 +01:00
contrib Introduce code for ES2+ API client functionality 2024-02-09 21:41:51 +01:00
docs Add terminal_capability command to send TERMINAL CAPABILITY 2024-02-12 18:59:54 +01:00
pySim saip.personalization: Fix encoding of ICCID in ProfileHeader 2024-02-21 09:23:58 +01:00
pysim-testdata ts_31_103: Add construct for EF.GBABP and EF.GBANL 2024-01-04 21:27:39 +01:00
scripts scripts/deactivate-5g.script: Also disable service 126 2022-07-08 20:47:35 +02:00
smdpp-data osmo-smdpp: Add TS.48 profiles modified for unique ICCIDs 2024-02-21 09:22:40 +01:00
tests saip.personalization: include encode/decode of value; add validation method 2024-02-21 09:22:40 +01:00
.checkpatch.conf Initial proof-of-concept SM-DP+ for GSMA consumer eSIM RSP 2024-01-09 21:37:12 +00:00
.gitignore gitignore: add manuals related files 2023-03-20 13:30:38 +01:00
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COPYING Add README, COPYING, .gitignor 2009-12-27 09:43:51 +01:00 sort dependencies, document smpp.pdu 2023-08-13 12:16:16 +02:00
csv-format pySim-prog: Use CSV format with headers 2019-09-03 20:11:48 +02:00 osmo-smdpp: Get rid of hard-coded ICCID 2024-02-20 23:55:37 +01:00 transport: do not catch exceptions in init_reader 2023-10-16 14:36:02 +02:00 transport: do not catch exceptions in init_reader 2023-10-16 14:36:02 +02:00 pySim-shell: Fix regression in 'apdu' command on cards without profile 2024-02-05 17:54:51 +01:00 Allow logger to do lazy evaluation of format strings 2024-01-08 12:10:11 +00:00
pyproject.toml Introduce setuptools support 2021-04-04 10:54:46 +02:00
requirements.txt requirements.txt: Switch to osmocom fork of asn1tools 2024-01-29 09:21:57 +01:00
setup.cfg Use as long description in package metadata 2021-08-03 08:38:55 -07:00 fix package name 2023-08-13 12:10:16 +02:00

pySim - Read, Write and Browse Programmable SIM/USIM/ISIM/HPSIM Cards

This repository contains a number of Python programs that can be used to read, program (write) and browse all fields/parameters/files on SIM/USIM/ISIM/HPSIM cards used in 3GPP cellular networks from 2G to 5G.

Note that the access control configuration of normal production cards issue by operators will restrict significantly which files a normal user can read, and particularly write to.

The full functionality of pySim hence can only be used with on so-called programmable SIM/USIM/ISIM/HPSIM cards.

Such SIM/USIM/ISIM/HPSIM cards are special cards, which - unlike those issued by regular commercial operators - come with the kind of keys that allow you to write the files/fields that normally only an operator can program.

This is useful particularly if you are running your own cellular network, and want to configure your own SIM/USIM/ISIM/HPSIM cards for that network.


Please visit the official homepage for usage instructions, manual and examples.


The pySim user manual can be built from this very source code by means of sphinx (with sphinxcontrib-napoleon and sphinx-argparse). See the Makefile in the 'docs' directory.

A pre-rendered HTML user manual of the current pySim 'git master' is available from and a downloadable PDF version is published at

A slightly dated video presentation about pySim-shell can be found at

pySim-shell vs. legacy tools

While you will find a lot of online resources still describing the use of and, those tools are considered legacy by now and have by far been superseded by the much more capable pySim-shell. We strongly encourage users to adopt pySim-shell, unless they have very specific requirements like batch programming of large quantities of cards, which is about the only remaining use case for the legacy tools.

Git Repository

You can clone from the official Osmocom git repository using

git clone

There is a web interface at


Please install the following dependencies:

  • bidict
  • cmd2 >= 1.5.0
  • colorlog
  • construct >= 2.9.51
  • gsm0338
  • jsonpath-ng
  • packaging
  • pycryptodomex
  • pyscard
  • pyserial
  • pytlv
  • pyyaml >= 5.1
  • smpp.pdu (from
  • termcolor

Example for Debian:

sudo apt-get install --no-install-recommends \
	pcscd libpcsclite-dev \
	python3 \
	python3-setuptools \
	python3-pycryptodome \
	python3-pyscard \
pip3 install --user -r requirements.txt

After installing all dependencies, the pySim applications, and may be started directly from the cloned repository.

In addition to the dependencies above requires tshark and the python package pyshark to be installed. It is known that the tshark package in Debian versions before 11 may not work with pyshark.

Archlinux Package

Archlinux users may install the package python-pysim-git from the Arch User Repository (AUR). The most convenient way is the use of an AUR Helper, e.g. yay or pacaur. The following example shows the installation with yay.

# Install
yay -Sy python-pysim-git

# Uninstall
sudo pacman -Rs python-pysim-git

Mailing List

There is no separate mailing list for this project. However, discussions related to pysim-prog are happening on the mailing list, please see for subscription options and the list archive.

Please observe the Osmocom Mailing List Rules when posting.


Our coding standards are described at

We are using a gerrit-based patch review process explained at