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Amazon Echo Show 5 (amazon-checkers)

From postmarketOS Wiki
Note NOTE: The device runs on armv7 despite the SoC theoretically supporting aarch64, this is because the downstream kernel is armv7
This device runs a Downstream kernel. Some UIs will not work, and most features (3D acceleration, audio, etc.) may be broken.
Amazon Echo Show 5 (1st Gen, 2019 Release)
First gen Echo Show 5
First gen Echo Show 5
Manufacturer Amazon
Name Echo Show 5 (1st Gen, 2019 Release)
Codename amazon-checkers
Model H23K37
Released 2019
Type tablet
Hardware
Chipset MediaTek MT8163
CPU Quad-core 1.3 GHz Cortex-A53
GPU Mali-T720
Display 960x480
Storage 8 GB
Memory 1 GB
Architecture armv7
Software
Original software
The software and version the device was shipped with.
 Android (Fire OS) 7.1.2 (FireOS 6.5.3.1)
Extended version
The most recent supported version from the manufacturer.
 Android (Fire OS)
Optional software Android (LineageOS) (Unofficial)
FOSS bootloader no
postmarketOS
Category downstream
Mainline
Instead of a Linux kernel fork, it is possible to run (Close to) Mainline.
 no
pmOS kernel
The kernel version that runs on the device's port.
 4.9.77
Unixbench score
Unixbench Whetstone/Dhrystone score. See Unixbench.
 591.9
Device package device-amazon-checkers
Kernel package linux-amazon-checkers
Features
Flashing
Whether it is possible to flash the device with pmbootstrap flasher.
Works
USB Networking
After connecting the device with USB to your PC, you can connect to it via telnet (initramfs) or SSH (booted system).
Works
Screen
Whether the display works; ideally with sleep mode and brightness control.
Works
Touchscreen
Works
Stylus
Untested
Multimedia
3D Acceleration
Broken
Camera
Untested
Connectivity
WiFi
Works
Bluetooth
Broken
GPS
Untested
Miscellaneous
USB OTG
USB On-The-Go or USB-C Role switching.
Untested
Sensors
Ambient Light
Measures the light level; used for automatic screen dimming in many interfaces.
Untested
Proximity
Untested
Power Sensor
Sensor to monitor current, voltage and power. Not fuel gauge!
Untested

Contributors

Users owning this device

How to enter flash mode

Your bootloader must be unlocked using amonet.

The exploit remaps the volume buttons to switch between boot modes, so with it installed you can use them to select different boot options:

  • HACKED FASTBOOT mode: Access this mode by holding ONLY the Volume Down key after connecting the power source.
  • TWRP / RECOVERY mode: Enter this mode by holding ONLY the Volume Up key and the after connecting the power source.
  • PWNED USBDL mode: Enter this mode by holding ONLY the MUTE and VOLUME DOWN buttons while connecting the power source. The USB cable MUST also be connected.

You can also use the boot-recovery.sh and boot-fastboot.sh scripts to force either mode if the buttons aren't available.

In PWNED USBDL mode, you can use tools like MTKClient to flash the device. It is important that you NEVER modify LK, TEE1, or Preloader, as they are required for the exploit to function.

You can boot OSS bootloaders by flashing them to the expdb partition and OSS ATF by flashing it to the TEE2 partition.

Installation

After booting into "hacked fastboot" mode, follow the instructions on Installation. As flashing via fastboot is very slow, you might want to try flashing over netcat instead.

UART

UART access is available through the TP55 pad (labelled in blue - RX). The baud rate is 921600.

See also

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