Hi my radio works properly, until I factory reset the i-navi system. My radio screen was working showing everything. Since I reset the i-navi system try get rid of the Korean league, tha radio has sound, all the controls works, but not show anything on screen about radio. Just the Navigation system. I try doing another reset on Navigation and disconnect the main battery, I try google traslate but nothing helps. Any idea. Thanks

Is there anything in your owner's manual that might cover something like this?

Thanks, but noting helps in the manual.

What if you considered doing the following,

You might start with finding a Korean church, then ask if someone there can read and understand Korean ?

Since you can't get any kind of answer up to this point, you might have some luck there.
Once we have some idea of what the message is saying , we have some idea of where to go next. Just a thought.

What do you think?