Blade 3 not detected over USB after Talos installation

I’m trying to install Ubuntu on a Mixtile Blade 3 Cluster Box, but I can’t get the device detected over USB.

Current situation:

  • Talos OS was previously installed successfully
  • I’m now trying to reflash the device from macOS
  • USB-C cable is connected to the port labeled near ADB
  • adb devices shows no devices
  • rkdeveloptool ld also shows no devices found
  • I tried power cycling and holding the recovery/reset button during power-on

As far as I understand, ADB should only work with Android, but even MaskROM / loader mode is not detected.

Questions:

  1. What is the exact procedure to enter MaskROM / loader mode on Blade 3?
  2. Is there a specific button or pin (BOOT / RECOVERY) that must be shorted?
  3. Which USB port must be used for flashing?
  4. Is it possible that Talos blocks USB flashing unless hardware pins are used?

At the moment the device is not visible via USB at all, so I can’t reinstall Ubuntu.

Any guidance would be appreciated.

Thank you.

i set pin MaskROM . Problem resolved