System can not be bootable

I designed the Nano carrier board by myself, but the ethernet is missing. I tried to fix this issue by changing the eeprom configuration. I did following operations:
I chang the value in address 0x23 by I2C.
sudo i2cset -f -y 2 0x50 0x23 0x32
(According to this link: https://docs.nvidia.com/jetson/archives/l4t-archived/l4t-3231/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide%2Fjetson_eeprom_layout.html)
Then reboot the Nano.
The system is failed to reboot.
Would you please help to check and support this case. Thanks for support.

According to this link

hello Harris.li,

please check similar topics, such as Topic 108680, and Topic 125692 for using ethernet.
you may also access Jetson Nano Product Design Guide, and Carrier Board Design Files for reference.
thanks