OpenEUICC/README.md

A fully free and open-source Local Profile Assistant implementation for Android devices.

There are two variants of this project, OpenEUICC and EasyEUICC:

	OpenEUICC	EasyEUICC
Privileged	Must be installed as system app	No
Internal eSIM	Supported	Unsupported
External eSIM [^1]	Supported	Supported
USB Readers	Supported	Supported
Requires allowlisting by eSIM	No	Yes -- except USB
System Integration	Partial [^2]	No
Minimum Android Version	Android 11 or higher	Android 9 or higher

[^1]: Also known as "Removable eSIM" [^2]: Carrier Partner API unimplemented yet

Some side notes:

1. When privileged, OpenEUICC supports any eUICC chip that implements the SGP.22 standard, internal or external. However, there is no guarantee that external (removable) eSIMs actually follow the standard. Please DO NOT submit bug reports for non-functioning removable eSIMs. They are NOT officially supported unless they also support / are supported by EasyEUICC, the unprivileged variant.
2. Both variants support accessing eUICC chips through USB CCID readers, regardless of whether the chip contains the correct ARA-M hash to allow for unprivileged access. However, only T=0 readers that use the standard USB CCID protocol are supported.
3. Prebuilt release-mode EasyEUICC apks can be downloaded here. For OpenEUICC, no official release is currently provided and only debug mode APKs and Magisk modules can be found in the CI page.
4. For removable eSIM chip vendors: to have your chip supported by official builds of EasyEUICC when inserted, include the ARA-M hash 2A2FA878BC7C3354C2CF82935A5945A3EDAE4AFA.

This project is Free Software licensed under GNU GPL v3, WITHOUT the "or later" clause. Any modification and derivative work MUST be released under the SAME license, which means, at the very least, that the source code MUST be available upon request.

If you are releasing a modification of this app, you are kindly asked to make changes to at least the app name and package name.

Building (Gradle)

Make sure you have all submodules cloned and updated by running

git submodule update --init

A file keystore.properties is required in the root directory. Template:

storePassword=my-store-password
keyPassword=my-password
keyAlias=my-key
unprivKeyPassword=my-unpriv-password
unprivKeyAlias=my-unpriv-key
storeFile=/path/to/android/keystore

Note that you must have a Java-compatible keystore generated first.

To build the privileged OpenEUICC:

./gradlew :app:assembleRelease

For EasyEUICC:

./gradlew :app-unpriv:assembleRelease

Building (AOSP)

There are two ways to include OpenEUICC in your AOSP-based system image:

1. Include this project and its dependencies inside the AOSP tree.
   • If inclusion in manifest.xml is required, remember to set the sync-s option to clone submodules.
   • The module name is OpenEUICC. You can include it in PRODUCT_PACKAGES, or simply build it standalone using mm.
   • Compilation of this project is only tested against the latest AOSP release version. The app itself should be compatible with older AOSP versions, but the source may not compile against an older AOSP source tree.
2. If compilation against AOSP source tree is not possible, consider building with gradle and import the apk as a prebuilt.
   • No official Android.bp is provided for this case but it should be straightforward to write.
   • You might want to include privapp_whitelist_im.angry.openeuicc.xml as well.

FAQs

• Q: Do you provide prebuilt binaries for OpenEUICC? \ A: Debug-mode APKs and Magisk modules are available continuously as an artifact of the Actions CI used by this project. However, these debug-mode APKs are not intended for inclusion inside system images, nor are they supported by the developer in any sense. If you are a custom ROM developer, either include the entire OpenEUICC repository in your AOSP source tree, or generate an APK using gradle and import that as a prebuilt system app. Note that you might want privapp_whitelist_im.angry.openeuicc.xml as well.

• Q: Can EasyEUICC manage my phone's internal eSIM? \ A: No. For EasyEUICC to work, the eSIM chip MUST proactively grant access via its ARA-M field.

• Q: Removable eSIMs? Are they a joke? \ A: No, even though the name "removable embedded SIM" can sound like an oxymoron. In fact, there can be many advantages to these chips compared to fully embedded ones. For example, the ability to transfer eSIM profiles without carrier support or approval, or the ability to use eSIM on devices that do not and may never get the support, such as Wi-Fi hotspots.

Copyright

Everything except libs/lpac-jni and art/:

Copyright 2022-2024 OpenEUICC contributors

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation, version 3.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

libs/lpac-jni:

Copyright (C) 2022-2024 OpenEUICC contributiors

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation, version 2.1.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

art/: Courtesy of Aikoyori, CC NC-SA 4.0.