ok, here I give you two different ways to enter panasonic models, I see that I have unlocked a panasonic device, I use the first one, it always gives me results, the truth is that the second one I have never tried with it, but the same and if it works for you, ok , comment your progress and luck
With the TV on, press simultaneously: CHANNEL + and ACTION (or MENU), release CHANNEL + and press and hold POWER until the on-screen menu appears. The TV will be reset to the original factory settings.
To deactivate V-CHIP key Press simultaneously the VOL- button on the TV and the 0 key on the C / R for more
Good morning, as you will read, I got in a forum a long time ago how to enter the factory menu, thanks same friend Francisco, greetings