SB1 freezes after charging and on Badge screen

Just got 2 brand new units - No software installed and they both freeze after charging and require a reboot. They also freeze  if left on the Badge screen for several minutes. Badge screen will exit on push of Home button as expected but if left idle for a few minutes it doesn't respond to the home key again.  Happens without any apps installed on both devices or with sample apps installed. The following SW ais  on the units OS  OS Version 2.01.31 RhoElement version App Folder Version 31.3 SB1 Shell Version 2.7.3