Specifications¶
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¶
Generic branding
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
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
Push Buttons¶
Power
Volume up
Volume down
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.
USB¶
Serial Downloader support (loading u-boot via USB)
USB-C port including USB-C role switching
Schematics¶
The following schematics are available:
Librem 5 Birch main board:
librem5_birch_mainboard_schematic.pdf
Librem 5 Birch USB C board:
librem5_birch_usb-c_board_schematic.pdf
X-Rays¶
The images below show X-ray images of the circuit boards. Click on the images to see larger versions.
First view:
Second view:
Third view:
Complete stitched images: