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• Hold <esc> in the terminal emulator of your choise choice (e.g. TeraTerm or PuTTY) while powering up the system with the WinPE SD card inserted in the device.

• The following series of commands will allow you to load the firmware binary from the SD card and write it to the boot partition 1 of the eMMC:

• Select the sd card socket

  Code Block
  mmc dev 1

• View the contents of the SD Card, verify that the firmware you want to write to the eMMC is present on the SD card

  Code Block
  fatls mmc 1:2

• Load the firmware binary you want to apply (In this example we use firmware.tr8m_v2r1.bin

  Code Block
  fatload mmc 1:2 0x40800000 firmware.tr8m_v2r1.bin

• Select the boot partition 1 of the eMMC

  Code Block
  mmc dev 0 1

• Write the firmware to the selected partition with the i.MX8M Mini specific offset

  Code Block
  mmc write 0x40800000 0x42 0x1B7B

• Select the eMMC Boot Partition as boot partition

  Code Block
  mmc partconf 0 1 1 0

• Erase the bootloader environment

  Code Block
  mmc env_erase

• Restart the device. It should reboot into the applied bootloader version.
  The first line of the serial output contains the build date of the bootloader.

  Code Block
  reset

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