Just want to report that the image is indeed working! The problems was not only the quality of the microSD card, but also the quality of the power supply! I've connected a fully charged LiPo battery to the Pine, and it booted OK. Connected the LCD, enabled both LCD and touch screen, everything's working too. Now I need to find out how to have my Bluetooth keyboard connected and working before the login, so I don't have to use the USB keyboard... But that's for another thread, I think?...
Anyway, thanks a lot for you help, @Igor and @tkaiser, my experience here is much better than in Pine forum!...