Librem 5 Phone – Birch¶

The sections on this page contain information about the Birch revision of the Librem 5 phone.

Quick Start Guide
Components
Schematics
X-Rays

Quick Start Guide ¶

The version of the Quick Start Guide included with the phone can be downloaded: Librem5-Quick-Start-1.0.3.pdf

Components ¶

System on Chip and Peripherals ¶

Customer grade i.MX 8M Quad [datasheet] and [reference manual]

Four ARM Cortex-A53 cores.

One Cortex-M4.

Vivante GC7000Lite graphics

1 ⨉ Gigabit Ethernet

32 GB eMMC

3GB RAM

SPI NOR Flash

Real Time Clock (RTC)

Audio ¶

Wolfson Media WM8962

Headphones and external microphone via CTIA-configured 3.5mm jack

Loudspeaker

Battery ¶

Texas Instruments BQ25895 battery charge controller [datasheet]

Bluetooth, Wi-Fi, WWAN ¶

Bluetooth I2S interface

Bluetooth (SDIO)

RedPine WiFi/BT M.2 module on SDIO

Broadmobi BM818-E1 or BM818-A1 WWAN module

Camera ¶

LN3560 Synchronous Boost Flash Driver [datasheet]

Display ¶

Mantix MLAF057WE51 MIPI DSI LCD panel: 720x1440 pixels and touch controller

GNSS ¶

Teseo-LIV3F multiconstellation GNSS receiver (UART2 interface and antenna)

Hardware Kill Switches ¶

Diodes Incorporated Power Switch [datasheet]

WWAN (Modem)

WiFi/Bluetooth

Microphone and Camera

LEDs ¶

Used for indicating charging status

nano-SIM and microSD Cards ¶

Combined microSD and nano-SIM slot

Push Buttons ¶

Power

Volume up

Volume down

Sensors and Motors ¶

Haptic motor

ST LSM9DS1 accelerometer, gyro, magnetometer [datasheet]

Vishay VCML4040 proximity and ambient light sensor [datasheet]

Smart Card ¶

Test Points ¶

The 15 test points for UART1, UART2, JTAG, and the BOOT_MODE0/1 pins can be found below the WLAN module on the rear of the phone, as shown with the rear cover removed.

See a larger version of this image

The USB test points are located in the recessed area above the battery compartment.