Mecha Comet (mecha-comet-m)
Appearance
This device has been tested with postmarketOS, but its device package has not yet been added to the postmarketOS repositories. This means that it cannot be selected in pmbootstrap. |
![]() pmOS on the Mecha Comet | |
Manufacturer | Mecha Systems, Inc. |
---|---|
Name | Comet |
Codename | comet-m |
Model | comet-m |
Pre-released | 2025 |
Type | handset |
Hardware | |
Chipset | Freescale i.MX 8M Mini |
CPU | 4x 1.8 GHz Cortex-A53 |
GPU | Vivante GC320 |
Display | 480 x 480 |
Storage | 32 GB eMMC |
Memory | 4 GB |
Architecture | aarch64 |
Software | |
Original software The software and version the device was shipped with. |
Mechanix OS Linux 1.0 |
Extended version The most recent supported version from the manufacturer. |
Mechanix OS Linux 1.0 |
FOSS bootloader | yes |
postmarketOS | |
Pre-built images Whether pre-built images are available here. |
no |
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. |
6.6.36 |
Firmware package | firmware-mecha-comet-m |
Flashing It is possible to flash the device with pmbootstrap flasher . |
Works
|
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USB Networking After connecting the device with USB to your PC, you can connect to it via telnet (initramfs) or SSH (booted system). |
Works
|
Internal storage eMMC, SD cards, UFS, ... |
Works
|
Battery Charging and battery level reporting works |
Works
|
Screen Display works. Ideally with sleep mode and brightness control. |
Works
|
Touchscreen |
Works
|
Multimedia | |
3D Acceleration |
Untested
|
Audio Audio playback, microphone, headset and buttons. |
Untested
|
Camera |
Untested
|
Connectivity | |
WiFi |
Works
|
Bluetooth |
Works
|
Ethernet |
Works
|
Miscellaneous | |
FDE Full disk encryption and unlocking with unl0kr. |
Untested
|
USB-A Full-sized USB-A port works (Usually applicable to SBCs and laptops). |
Untested
|
USB OTG USB On-The-Go or USB-C Role switching |
Works
|
Sensors | |
Accelerometer Auto screen rotation works in desktops e.g. Phosh or Plasma Mobile |
Works
|
Magnetometer Sensor to measure magnetism |
Untested
|
Ambient Light |
Untested
|
Proximity |
Untested
|
Hall Effect Also known as flip cover sensor |
Untested
|
Haptics |
Untested
|
Barometer Sensor to measure air pressure |
Untested
|
Power Sensor Sensor to monitor current, voltage and power. Not fuel gauge! |
Untested
|
Primary Bootloader It is possible to replace stock bootloader with U-Boot. |
Works
|
---|---|
Secondary Bootloader It is possible to chainload U-Boot from stock bootloader. |
Untested
|
Mainline Latest versions of U-Boot are not broken and it is possible to use them. |
Broken
|
Internal Storage It is possible to boot from internal storage (e.g. eMMC or UFS). |
Works
|
SD card It is possible to boot from SD card. |
Untested
|
USB Host It is possible to boot from a USB storage or connect a keyboard. |
Untested
|
USB Peripheral It is possible to use device as a peripheral in U-Boot, e.g. for fastboot mode. |
Untested
|
Display |
Works
|
Keyboard |
Untested
|
Buttons It is possible to navigate in boot menu or grub with volume and power buttons. |
Untested
|
Information
This page corresponds to the Evaluation Kit (revision 3) of the Mecha Comet, originally shipped to Pilot testers and developers.
Contributors
Users owning this device
How to enter flash mode
- Ensure your Mecha Comet is powered off.
- Locate the toggle switch on the back of the device.
- Toggle the switches to the "serial mode" position, this will enable flashing. This position may be indicated by labels or diagrams near the switch.


Installation
Using pmbootstrap
Follow Installation/Using pmbootstrap. When asked for the device's vendor/codename, select Mecha as the vendor and comet-m as the codename.
To flash the image to the device:
- Enter flashing mode (see #How to enter flash mode)
- Run
pmbootstrap flasher flash_rootfs