Not able to work with 40-Pin header of A205 carrier board and Jetson Nano Production module

Hi,

I am using A205 carrier board with Jetson Nano production module, 36.6.1 L4T version with Jetpack 4.6. I want to use the 40-pin header of the A205 carrier board and want to enable 2 GPIOs. I have followed the flashing procedure according to this A205 Carrier Board | Seeed Studio Wiki, but I was not able to see the 40-pin header by using Jetson-IO, it is showing only CSI connector.

I even tried to change make changes in pinmux and device tree by following this https://docs.nvidia.com/jetson/archives/l4t-archived/l4t-3261/index.html#page/Tegra%20Linux%20Driver%20Package%20Development%20Guide/adaptation_and_bringup_nano.html#wwpID0E0RQ0HA
But still not able to see the 40-pin header by using Jetson-IO.

Are there any device tree changes that i need to do? or Do I need follow any specific procedure?

Please help.
Thank you