Ring Video Doorbell (2nd Gen) cables connection help pls

Hi to all, need help, I connected to the old Door Bell cables (just use 2 : red and black) and doesn't work as battery recharge (showing Battery as energy source), the device still working by the internal battery. I have 2 more cables (White and Yellow) avaialble but I didn't used. In the Ring installation video the used cables are the Red and White but I tried to use the same cables used before but maybe was a mistake. The old base ring sound device is not working correctly also (ringing without stopping) but that is not important, as I bought a chime the important is too keep the battery recharging by the house cables and I dn't need to take the battery and recharg it.Someone have a tip ?I'm living in Germany so is the European electric standart process, 4 cables, White, Black, White and Yellow.Thank you.