For the following the error, How can I modify it

[0009.670] [L4T TegraBoot] (version 00.00.2018.01-l4t-7dfcb60a)
[0009.676] Processing in recovery mode
[0009.679] A02 Bootrom Patch rev = 1023
[0009.682] Power-up reason: pmc por
[0009.686] Established communication link with host
[0010.684] NvTbootI2cWrite(): error code 0x00045100 Error while starting write transaction
[0010.691] NvTbootI2cDeviceRead(): error code 0x00045001 Error while sending the offset to slave
[0010.700] NvTbootI2c: Read failed for slave 0xac, offset 0x00 with error code 0x00045001

hello tpwang2000,

may I know what’s the modification you had done?
please also share which Jetpack release you’re working with, thanks

I disable the HDMI;I copy the rootfs from the nano board;and then,replaced the rootfs in the Linux_for_Tegra; then directly flash another module through commond;

hello tpwang2000,

let’s say you had Nano-A and Nano-B, you’ve copy the rootfs of Nano-A and plan deploy to other platforms.
are these two identical Nano platforms? did both of them were eMMC modules or SD-card units?
furthermore, is this Nano-B ever flashed before to verify hardware functionality?