May 11, 2024, 2:54 AM

@guyii
From the phenomenon you described, it appears that the onboard EMMC partition table has been damaged. Try formatting the onboard EMMC memory according to the following operation method. After successful completion, you can enter UMS mode normally.

  1. Find a USB drive and use an etcher to create an image of Ubuntu on it. Remember to back up important data from the USB drive before creating it.
  2. Insert the USB drive into the USB port of the laptop and start the machine. If everything goes smoothly, the machine will successfully boot from the USB drive.
  3. Use commands to format onboard EMMC memory
sudo mkfs.ext4 /dev/mmcblk0
  1. Remove the USB flash drive and press and hold the power button for 10 seconds to forcibly shut down the machine.
  2. Connect the TypeC port to the X86 computer and press the power button multiple times to enter UMS mode.