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  1. RPiBoot cannot be installed and there is a “TrustedPublisher” error?

    1. Disable the Driver signature verification.

  2. Check if the USB cable is intact. There are USB cables that come without all the necessary data lines.

  3. Check if you are using the latest downloads. Maybe the RPiBoot.exe, which is needed to communicate with the compute module under Windows, is available in a newer version.
    https://www.raspberrypi.com/documentation/computers/compute-module.html#setting-up-the-cmio-board

  4. Try to connect using a Linux environment. Unfortunately, some USB related problems do not work under Windows but under Linux.

  5. Change the USB host, e.g. your desktop PC with a laptop or similar.

  6. There are suspicious errors “cannot open file autoboot.txt …” - ignore them - it concerns optional files.

  7. Use a USB HUB with an external power supply.

  8. Use a tool like balena Etcher that writes and reads out the written image to prove that the eMMC is written correct.

https://www.raspberrypi.com/documentation/computers/compute-module.html

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