List of open-source mobile phones
All available mobile phones have proprietary baseband (GSM module) firmware. There is an open source baseband project, OsmocomBB. There is a project based on illicit leaked source code for the Calypso modem called FreeCalypso.
Android-based devices do not appear on this list because of the heavy use of proprietary components, particularly drivers and applications. There are numerous versions of Android, such as Cyanogenmod and the freedom-respecting Replicant that can be installed on a large number of phones after-market.
WebOS was initially available only under a proprietary license but the source code was later released under a free license by HP. Still, Open WebOS will not run on all WebOS devices.
|Organization||Model||Mobile operating system||Release date||Current state|
|Nokia||N900||Maemo 5 (Fremantle)||2009-11-11||Discontinued|
|Nokia||N950 (available to developers only)||MeeGo 1.2 Harmattan||2011||Discontinued|
|Nokia||N9||MeeGo 1.2 Harmattan||2011||Discontinued|
|OpenMoko||Neo 1973 (code name GTA01)||Openmoko Linux, Qtopia (both Linux-based)||2007-07-09||Discontinued|
|OpenMoko||Neo FreeRunner (code name GTA02)||Openmoko Linux, Qt Extended, Debian, SHR (Stable Hybrid Release), Gentoo (all Linux-based), Inferno||2008-06-24||Discontinued|
|Golden Delicious||GTA04||QtMoko, Debian, SHR (Stable Hybrid Release), Replicant||2012-04||Available for preorder|
|Aava mobile||Developer phone||MeeGo||2011||Discontinued (available to developers only)|
|Alcatel||One Touch Fire||Firefox OS||2013-07||Discontinued|
|BQ||BQ Aquaris E4.5 Ubuntu Edition||Ubuntu Phone||2015-02||Available|
|BQ||BQ Aquaris E5 HD Ubuntu Edition||Ubuntu Phone||2015-06||Available|
|Meizu||Meizu MX4 Ubuntu Edition||Ubuntu Phone||2015-07||Discontinued|
|Meizu||Meizu Pro 5 Ubuntu Edition||Ubuntu Phone||2016-02||Pre-order|
It is possible to home-build a phone from open hardware and software. The Arduinophone (touchscreen) and the MIT DIY Cellphone (segmented display) both use the Arduino open-hardware single-board computer, with added components. The PiPhone  is similar, but based on the Raspberry Pi.
- Welte, Harald (2010-02-05). "OsmocomBB Project Rationale". Retrieved 2013-09-26.
Every mobile device that is connected to a cellular network runs some kind of baseband processor with highly proprietary and closed-source firmware.
- Android (operating system)#Licensing "drivers and firmware vital for the proper functioning of Android devices are usually proprietary"
- Stallman, Richard (2011-09-19). "Is Android really free software? – Google's smartphone code is often described as 'open' or 'free' – but when examined by the Free Software Foundation, it starts to look like something different". The Guardian. Retrieved 2012-09-09.
the software of Android versions 1 and 2 was mostly developed by Google; Google released it under the Apache 2.0 license, which is a lax free software license without copyleft. ... The version of Linux included in Android is not entirely free software, since it contains non-free "binary blobs"... Android is very different from the GNU/Linux operating system because it contains very little of GNU.
- Stallman, Richard (2012-08-05). "Android and Users' Freedom – Support the Free Your Android campaign". gnu.org. Retrieved 2012-09-09.
Even though the Android phones of today are considerably less bad than Apple or Windows smartphones, they cannot be said to respect your freedom.
- "Peak+ cancellation". 28 November 2013.
- Making your own phone is easier than you might think, Lisa Grossman, Issue 2909, New Scientist Magazine
- Arduinophone designer's description
- DIY Cellphone on the designer's MIT homepage
- David A. Mellis & Leah Buechley. 2014. Do-It-Yourself Cellphones: An Investigation into the Possibilities and Limits of High-Tech DIY. In Proceedings of the 32nd annual ACM conference on Human factors in computing systems (CHI '14).
- PiPhone – A Raspberry Pi based Smartphone
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