Hi there. I will try and help you through this process but as the menu is in czech understanding what you see on the screen will be a little tricky. firstly you need to press the + or - button on the panel until you get to general setup (obecné nastavení or similar in czech). Then press ok. see if you can get to that point and if succesful we can try the next step.

That is the right place. The language is croat hnce why it's slightly different. Press ok

it should then say something like lokalnom jeziku (local language). Press the + or - agan to scroll through the lanuages until you get to english (might call it engleski) and then press ok to accept it. all being well you should then be in english

That is the right area but in slovak (very similar to croat) now just to confuse us. Lol. Use the = or - to scroll through to english. If it is in slovak it may be anglická

That should have been + or - not = or -

press ok when you think you are on english

ok thanks you too.