Why aren't MS Supporting my $200 Power keyboard that i purchased from them to prop up poor battery life on 2,3 versions of Surface pro? I as a consumer continue to support them by buying all their versions of Surface, only to find out battery life has decreased in each version (Ymmv). MS, are you claiming that the power cover is hardware incompatible with the surface pro 4 ? All the pins are exactly the same, make it work. A firmware update worked with the Sp3, When are you fixing this for your sp4 ?