Hi and welcome, you guessed write no i could not get the symbolic links to work i even tried changing the default symbolic link at cd /usr/bin i restarted the router every time, but the real strange thing is backing up the original symbolic link and putting everything back it never works again that is AdGuard only way is to reinstall the firmware i even run a command ls | awk ‘{printf(“%s ->”, $1); system("readlink -f " $1)}’ that shows what the symbolic link path.
The bottom line is i would rather of paid a little more and had a decent Internal Flash Storage to start with, because even with a fresh firmware its practically half gone to start with.
Anyway i just keep an eye on how large AdGuard gets and keep its size down.