Hello.
Some tutorials explain how to do it.
We first need to root the TV with scripts such as RootMyTV, and then install dts_restore.
Both tools are free and available at github.
I'm not writing the links because I don't know if it's allowed in this forum and because I take no responsibility.
My question is:
Has anybody tried this process? Does it work?
The documentation says if you have any problem you can just factory reset the TV, but I don't dare to do it.