Hello ZinggJM,
Firstly thanks to taking your time helping to me.
I read the Oliver's explanation, now i understand a little bit these code line.
I test your code but adding "display.setFullWindow();" refresh the display every time and only change the last line one time every refresh.
I want change, for example, the 2nd and last line, blinking from one text to other and repeat..., all time. Anyway i just want to know how to work with the display, i mean in this case, how update a partial area to update information in the display.
In "my best try" (2nd post) i can do this successfully (not perfectly), but i think that is not the best way.
Thanks for your attention.
Regards.