Thanks for all the information!!!
I tried to change change 05 00 00 0A to 00 00 A0 E1 but they are not on the offset you said they are. I search and replace the bytes anyways but when I delete and copied the new Navi.exe the unit did not start correctly. So I pasted the old navi.exe without modifications and it restarted correctly. Thanks god!
Now, how do I find offset 0xBEC18. My file when I open it with HxD goes up to 006FE9F0 I don't see any x for example...
Do you know how I can make it work?