List of open-source mobile phones

Cellular modem and other firmware Some hardware components used in phones require drivers (or firmware) to run. For many components, only proprietary drivers are available except for the Necuno, which has no such chip and communicates by peer-to-peer VOIP. The modem is usually integrated with the system-on-a-chip and the memory. • There are numerous versions of Android which seek to replace the proprietary components, such as LineageOS (successor to the now-defunct Cyanogenmod) and Replicant, that can be installed on a large number of phones after-market. There are also devices using Ubuntu Touch, Droidian and FuriOs which are using GNU/Linux and Android hardware adaptation layer Halium. Phones natively running these are included. • There are multiple projects to implement mainline Linux on mobile phones. Mobian is an open-source project focusing on Debian GNU/Linux on mobile devices. postmarketOS is based on the Alpine Linux. Arch Linux ARM based Manjaro is focusing on PinePhone hardware. • WebOS (LG Electronics) was initially available only under a proprietary license but the source code was later released under a free permissive license by HP. Open WebOS will not run on all WebOS devices. LuneOS is Halium based fork of WebOS. • Firefox OS was released under a permissive MIT license but its KaiOS successor is proprietary; the former is included. • All Maemo, Meego and Sailfish OS devices running open Maemo Leste or Mer middleware are included. Tizen devices are not included. • Open QTMoko/OpenMoko phones of Qt Extended are included to the list. Note that it is often possible to install a wide variety of open-source operating systems on any open-source phone; the higher-level software is designed to be largely interchangeable and independent of the hardware. There are also an increasing number of phones that come with a proprietary operating system pre-installed (usually Android), but allow the user to install mainline Linux (such as the Fairphone 5 and SHIFTphone 8). These are listed under #Devices with 3rd party support. == Devices with formal support ==

These are mobiles that can be ordered with the open-source software pre-installed. Some also have an option where they can be ordered with proprietary OS pre-installed. } == Devices with 3rd party support ==

==Distributions for existing phones==

running on postmarketOS on the Nexus 5 postmarketOS, Ubports, and KDE Neon are open-source distributions running on existing smartphones originally running Android. Maemo Leste is available for Nokia N900 and Motorola Droid 4. There exists a database listing which older phones will run which open-source operating systems. ==Custom-made phones==

It is possible to home-build a phone from partially open hardware and software. The Arduinophone both use the Arduino open-hardware single-board computer, with added components. Circuitmess Ringo (previously MakerPhone) is another DIY Arduino phone with open source firmware and available schematics, focusing on education. The PiPhone, ZeroPhone and OURphone are similar, but based on the Raspberry Pi. The main components to make an open mobile phone are: • Back cover • Touch screen • Battery • Logic board Another notable mention would be Paxo Phone at paxo.fr ==See also==