[Unitree Go1] Not standing up and RaspberryPi error Network conenction with Jetson nano and with the robot

I am working with one of the most simple versions of GO1.

I was configuring the Pi inside the Go1 Unitree Robot to get connected to internet via Wifi.
I applied some changes, restarted the robot and now I have errors I can’t fix and I am very worried about:

· When i turn up the robot, it does not stand up, it lays down and it seems to be no force in the legs. If I press L2+B+B I can do L2+A and the robot stands up with 3 legs while the fourth one does not move. I tried calibrating the legs but the error persists.

· I cannot do ping 192.168.123.161 to the robot and i cannot do ssh to the raspberry pi from my jetson nano, where i have all my ros programs. I guess it has something to do with network configuration. Is there somewhere where i could look for this files?. Also, if i connect the pi via hdmi and keyboard, wifi adapter of the robot does not appear, whivh suggest me there is no connection between pi and the robot because before applying the changes it appeared. I was trying to connect to my local wifi. Neither can I do ssh unitree@192.168.123.15
I edited files like /etc/resolv.conf /etc/wpa_supplicant/wpa_supplicant.conf and /etc/dhcpcd.conf and interfaces. Maybe an original copy of these files is enough but i dont have a backup and i dont know where to find it
Also sudo systemctl restart dhcpcd is not working in my raspberry.

Both errors appeared simoultaneously so I believe is rather a software problem than Hardware
I would appreciate any help, I am very worried about this issue.

Thank you in advance

@Azib Please take a look!

I restablished the connection so I can now do ssh no the pi from the jetson nano by restarting dhcpcd and network manager. However, when i connect to 192.168.123.161, in the unitree app, the main board MQTT Server appears blue while system manager and robot controller appear grey and i cannot see for example the temperature or state of charge and I cannot tell the robot to stand up. The leg that does not move or moves wrong still moves wrong