Please help me

How can I open the extended service menu in UA48HU8500 model?
I reset the eeprom and do not have access to local set
When I turn on my tv it says go to service menu and set the front color type and local set
Adjust volume to maximumFasihi1990 wrote: ↑Sun Jun 06, 2021 6:49 pm Well I did everything with the IR extender and got no results.
Find service manual for similar model (you can find for UE48HU9000) and try values from there. If you check few manuals you can see there are similar values for different models.Fasihi1990 wrote: ↑Sun Jun 06, 2021 6:50 pm Also My audio settings have changed and the audio quality is very bad. I need help as to how should I fix it