[4.4.0.58][Xperia X]Cannot add fingerprint

Forgotten the CSD tool: it fails for FP sensor
( 4.4 flashed, no upgrade - upgrade from 4.2 to 4.3 was unusable)

Launching sailfish-fpd as root gives
#sailfish-fpd -v
[gbinder] ERROR: Can't open /dev/hwbinder: No such file or directory