KIOSK should be upgraded to version 7 (at least 7.3_22) to change position of Floating back button
Follow the instructions to upgrade KIOSK first if your KIOSK is on version 6
How to Upgrade KIOSK
  • Go to KIOSK menu by double tapping top left icon
  • Click KIOSK Settings

  • Click Update Floating Back Button

  • Once installation is completed , the position of Floating Back Button will shift up