Board "sand", Full ROM flashed 2026-10-05, no USB boots, verified sticks

Support
1

System Details

  • Device: sand
  • OS: ChromeOS
  • Firmware Type: Full ROM flashed 2026-10-05
  • Firmware Version: current
  • Internal storage type: eMMC

Summary of the Issue

no USB boots, verified sticks.

Steps to Reproduce

  1. press power bottom, keyboard light on, power LED on.

  2. wait long or short time. or right away.

  3. press power bottom, everything turn off instantly.

Expected Behavior

boot from USB.

2

your issue description indicates the board is failing to boot, nothing to do with USB. Where is that coming from?