# Update DTB on Jetson Nano (Production-EMMC Version)

**URL:** <https://forums.balena.io/t/update-dtb-on-jetson-nano-production-emmc-version/281395>\
**Category:** balenaOS\
**Tags:** jetson\
**Created:** [April 1, 2021, 3:12pm UTC](https://forums.balena.io/t/update-dtb-on-jetson-nano-production-emmc-version/281395 "2021-04-01T15:12:55Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![acostach](https://avatars.discourse-cdn.com/v4/letter/a/bcef8e/32.png) [@acostach](https://forums.balena.io/u/acostach)\
**Post date:** [April 7, 2021, 9:20am UTC](https://forums.balena.io/t/update-dtb-on-jetson-nano-production-emmc-version/281395/8 "2021-04-07T09:20:14Z")

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Hi @smithandrewc , by default u-boot loads the dtb from the rootfs and merges it with the one that was passed by cboot - cboot reads the one in the raw partitions like /dev/disk/…/DTB. So for a test, can you try replace the existing dtb with the one you edited in /mnt/sysroot/active/current/boot/ ? You mention using the eMMC version so I think that would be tegra210-p3448-0002-p3449-0000-b00.dtb

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