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 from the postmarketOS Installation page. |
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 Whether 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 Whether charging and battery level reporting work. |
Works
|
Screen Whether the 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 Whether the full-sized USB-A port works. |
Untested
|
USB OTG USB On-The-Go or USB-C Role switching. |
Works
|
Sensors | |
Accelerometer Handles automatic screen rotation in many interfaces. |
Works
|
Magnetometer Sensor to measure the Earth's magnetism |
Untested
|
Ambient Light Measures the light level; used for automatic screen dimming in many interfaces. |
Untested
|
Proximity |
Untested
|
Hall Effect Measures magnetic fields; usually used as a 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 Whether it is possible to replace stock bootloader with U-Boot. |
Works
|
---|---|
Secondary Bootloader Whether it is possible to chainload U-Boot from stock bootloader. |
Untested
|
Mainline Whether latest upstream versions of U-Boot are not broken and it is possible to use them. |
Broken
|
Internal Storage Whether it is possible to boot from internal storage (e.g. eMMC or UFS). |
Works
|
SD card Whether it is possible to boot from SD card. |
Untested
|
USB Host Whether it is possible to boot from a USB storage or connect a keyboard. |
Untested
|
USB Peripheral Whether it is possible to use device as a peripheral in U-Boot, e.g. for fastboot mode. |
Untested
|
Display |
Works
|
Keyboard |
Untested
|
Buttons Whether 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