Shenzhen Big Tree Technology Co., Ltd.
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CM4 eMMC Version
(Note: the eMMC version will not run the system from the MicroSD card.)
1. Install rpiboot
For Windows:
http://github.com/raspberrypi/usbboot/raw/master/win32/rpiboot_setup.exe
For Mac and Linux
https://github.com/raspberrypi/usbboot#building
2. Turn DIP switch 4 (USBOTG), 3 (RPIBOOT) to ON to enter BOOT mode.
3. Plug the Type-C into the USB port of the computer (in order to avoid problems
caused by the insufficient USB power supply of the computer, it is
recommended to use an external 24V power supply to power the
motherboard), run sudo ./rpiboot (Mac/Linux) or rpiboot.exe on Windows, then
the eMMC of CM4 will be recognized by the computer as a mass storage
device (if rpiboot reports an error at this time, you can try to re-plug the USB).
4. The steps of using the Raspberry Pi Imager to write the OS image are exactly
the same as the LITE version.
5. When the writing is complete, turn the DIP switch 4 (USBOTG) and 3
(RPIBOOT) back to OFF after powering off, and then enter the normal
working mode after powering on again.