Librem 5 Linux Phone Ankit Chaubey, 5, June 202226, June 2022 The Librem 5 is a smartphone manufactured by Purism that is part of their Librem line of products. The phone is designed with the goal of using free software whenever possible, includes PureOS, a GNU/Linux operating system, by default, and as of 2021 is the only smartphone recommended by the Free Software Foundation. Like other Librem products, the Librem 5 focuses on privacy and freedom, and includes features like hardware kill switches, and easily-replaceable components. Its name, with a numerical “5”, refers to its screen size, and not a release version. After an announcement on August 24, 2017, the distribution of developer kits and limited pre-release models occurred throughout 2019 and most of 2020. The first mass-production version of the Librem 5 was shipped on November 18, 2020.TABLE OF CONTENTS1 Aim of Librem 52 Security of Librem 52.1 Hardware specs:2.2 About The Author2.2.1 Ankit Chaubey2.3 RelatedAim of Librem 5Librem 5 aimed not only to run purely on free software provided in PureOS, but to “[focus] on security by design and privacy protection by default”. Purism claimed that the phone would become “the world’s first ever IP-native mobile handset, using end-to-end encrypted decentralized communication”. Purism has cooperated with GNOME in its development of the Librem 5 software. It is planned, that KDE and Ubuntu Touch will also be offered as optional interfaces.Security of Librem 5The hardware features three hardware kill switches that physically cut off power from both cameras and the microphone, Wi-Fi and Bluetooth, and baseband processor, respectively. Further precautionary measures can be used with Lockdown Mode, which, in addition to powering off the cameras, microphone, WiFi, Bluetooth and cellular baseband, also cuts power to the GNSS, IMU, ambient light and proximity sensor. This is possible due to the fact, that these components are not integrated into the System on a Chip (SoC), like they are in conventional smartphones. Instead, the cellular baseband and Wi-Fi/Bluetooth components are located on two replaceable M.2 cards, which means, that they can be changed to support different wireless standards. The kill switch to cut the circuit to the microphone will prevent the 3.5 mm audio jack being used for acoustic cryptanalysis.Hardware specs:Display : 5.7″ IPS TFT screen @ 720Ă—1440Processor: i.MX8M (Quad Core) max. 1.5GHzMemory: 3GB RAMStorage: 32 GB eMMC internal storageExternal Storage: microSD storage expansionWireless: 802.11abgn 2.4 Ghz / 5Ghz + Bluetooth 4Baseband: Gemalto PLS8 3G/4G modem w/ single SIM on replaceable M.2 cardGPS: Teseo LIV3F GNSSSmartcard: Reader with 2FF card slot (SIM card size)Sound: 1 earpiece speaker, 3.5mm headphone jackAccelerometer: 9-axis IMU (gyro, accel, compass)Front Camera: 8 MPixelBack Camera: 13 MPixel w/LED flashVibration motor: IncludedUSB Type C: USB 3.0 data, Charging (Dual-Role Port)Battery: User replaceable – 3,500 mAhAbout The Author Ankit Chaubey See author's postsRelated Linux Tech Aim of Librem 5Hardware specs:Librem 5LinuxSecurity of Librem 5
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