How to change the can clocks after burned the system

I flashed the Jetpack 5.1 system to the Xavier Jetson AGX, and according to the Internet, the CAN clock needs to be changed. That is, modify the two device tree files “tegra194-p2888-0001-p2822-0000.dtb” and “tegra194-a02-bpmp-p2888-a04.dtb”. But if I modify these two files on the host machine and then burn to xavier, It always fails (showing that Xavier cannot enter the desktop system), if I burn system first and then modify these two files, I can only find the “tegra194-p2888-0001-p2822-0000.dtb” file in the /boot directory, and the other file cannot be found. How can I modify the CAN clock?

Please check below thread to see if can help: CAN Transceivers on Jetson AGX Xavier - Jetson & Embedded Systems / Jetson AGX Xavier - NVIDIA Developer Forums

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