I have a jetson orin nano running uefi firmware 3.x. After upgrading uefi firmware to 5.0, jetson orin nano can not boot from old memory card anymore. How do I downgrade uefi firmware from 5.0 to uefi firmware 3.x?
Hi ngocanhmtak50,
Are you using the devkit or custom board for Orin Nano?
How did you upgrade UEFI from 3.x to 5.0?
Have you tried to use the flash command to update UEFI only?
Please share the result of cat /etc/nv_tegra_release on your board.
- The UEFI firmware of jetson orin nano automatically upgrades from 3.x to 5.x when I insert a new SD card with jetpack 5.x.
- Can you guide me to use the flash command to flash uefi? I want downgrade uefi firmware from 5.0 to uefi firmware 3.x?
Result of cat /etc/nv_tegra_release on your board:
R35 (release), REVISION: 5.0, GCID: 35550185, BOARD: t186ref, EABI: aarch64, DATE: Tue Feb 20 04:46:31 UTC 2024
You can use the following command to flash UEFI only.
$ sudo ./flash.sh -k A_cpu-bootloader -c bootloader/t186ref/cfg/flash_t234_qspi.xml jetson-orin-nano-devkit nvme0n1p1
But it may not work if you use Jetpack 5.1.3(R35.5.0) + UEFI of R35.3.1.
May I know what’s your current use case and requirement?
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Thank you! I successfully flashed UEFI using the command line: sudo ./flash.sh -c bootloader/t186ref/cfg/flash_t234_qspi.xml jetson-orin-nano-devkit internal
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