Remember I have a 1204, not a 1102 !
I'm connected but not familiar with the Linux OS and file system. I only use Raspberries for 3D printing, and the first thing I do is installing Samba and share the root directory so I can navigate from the Windows Explorer.
I don't what to search for and where to search... Could take some time !
[EDIT] discovered a VNC server !
[EDIT 2] the only cfg file seems to be "./usr/bin/siglent/firmdata0/sys_cfg.cfg" on my SDS1204X E . Not sure it will be usefull to the OP