Edita il build.prop e aggiungi o se già c'è modifica sta parte in questo modo:
accelerometer.flip_xy=1
accelerometer.invert_x=1
accelerometer.invert_y=1
accelerometer.invert_z=1
these can be set from shell e.g. setprop accelerometer.flip_xy 1. after setprop, auto-rotate off->on to reflect properties. once you get correct settings, add necessary lines into /system/build.prop. in most cases, one of followings will work:
accelerometer.flip_xy=1
accelerometer.invert_x=1
or
accelerometer.invert_x=1