Hi sir
We designed our custom carrier board, but it fails to boot normally after power-on:
1. When the AGX is connected to a PC via USB, powering it on successfully detects the NVIDIA APX device (Force Recovery Mode).
2. When using NVIDIA tools to flash the image, the flashing software can communicate with the board normally at first.
3. Eventually, the flashing tool times out (as shown in the screenshot). Normally, the device should reboot and switch to NVIDIA Linux for Tegra, but it fails to make the switch. This results in a connection timeout and prevents the flash process from completing.
4. The TX line on Debug UART 3 shows no activity at all.
flash_3-2_0_20260731-094312.log (9.7 KB)