Radxa Zero (radxa-zero)

U-Boot
Primary Bootloader	Works
Mainline	Works
Internal Storage	Works
SD card	Works
USB Host	Works
USB Peripheral	Works
Display	Works
Keyboard	Works
Buttons

Features
Flashing
USB Networking
Internal storage
SD card
Screen	Works
Multimedia
3D Acceleration	Works
Audio	Broken
Camera Flash
Connectivity
WiFi	Partial
Bluetooth	Works
Miscellaneous
FDE	Partial
USB OTG	Works
HDMI/DP
Sensors
Magnetometer
Ambient Light
Proximity
Hall Effect
Haptics
Barometer

Radxa Zero
	; Diy dock + Radxa Zero + External Display
Manufacturer	Radxa
Name	Zero
Codename	radxa-zero
Released	2021
Type	single board computer
Hardware
Chipset	Amlogic S905Y2
CPU	Quad Cortex-A53 1.8 GHz
GPU	Mali G31 MP2
Display	MicroHDMI 2.1 - 4K@60
Storage	None/8/16/32/64/128GB EMMC + SDCard
Memory	512MB/1GB/2GB/4GB LPDDR4
Architecture	aarch64
Software
Original software	Debian
Original version	10
postmarketOS
Category	testing
Pre-built images	no
Mainline	yes
postmarketOS kernel	linux-edge
Unixbench Whet/Dhry score	1657.2

Maintainer(s)

exkc

Contributors

Medusa

Users owning this device

Exkc

How to enter flash mode

The way of boot into flash rom via hidden bootrom hdmi feature might work on this device. (see the see also section of amlogic page)

hold down usb-boot button on back of pcb

How to use the boot rom

see Amlogic

Expose embedded eMMC as a USB Mass Storage device

Fellow https://wiki.radxa.com/Zero/dev/maskrom#Enable_maskrom

Installation

1. Follow the steps on Installation_guide#Initialization

2. Choose the radxa-zero device

3. Start the build process and install the completed image to a sdcard

$ pmbootstrap install --sdcard /dev/sdX
(replace /dev/sdX with the device for your sdcard or the emmc of it)

4. If you install pm os on sdcard , then Place the sdcard into the Radxa Zero and boot it. If not unplug the usb cable.

Boot process

If emmc is bootable :

bootrom ==> emmc ==> uboot ==> postmarketOS

Else if sdcard is bootable :

bootrom ==> emmc ==> uboot ==> postmarketOS

Else :

bootrom ==> flashmode

Wifi

Depend on your Radxa Zero, it might be had one of those Wi-Fi modules : AW-CM256SM(some of the Radxa Zero v1.5 had this),AP6256(Radxa Zero 2/4/8GB had this),AP6212(Radxa Zero 1024/512MB had this) so the wifi of your Radxa Zero might not work due to the wifi modules on your Radxa Zero isnt supported by the kernel or the firmware that is in the pm os.

As of now , the only Wi-Fi modules that seem to supported by the kernel and the firmware is AP6256.