Zwave_conf never ending

Hi,

Trying to play a little bit with zwave/zigbee and when running zwave_conf, the command hang at:

*** DE88C MATRIX Creator US has been detected
INFO: [/dev/matrixio_regmap] was opened
#ZM5202 Response: 53 : AA
#Serie 500 chip found
#Chip Ready
#Chip Ready
#Chip Ready
#NVR check process OK
#NVR check process OK
NVR_Status=1
#Zwave NVR has been programmed !!!
INFO: [/dev/matrixio_regmap] was opened
#ZM5202 Response: 53 : AA