MM6 Mini - Touchscreen Replacement


This article explains how to replace the touchscreen of an MM6 Mini device. 


Tools/Materials Required

  • Phillips Head Screwdriver
  • 3/8” wrench, socket or nut driver (preferred)
  • 11/32” wrench, socket or nut driver (preferred)
  • Zip ties (small)



  1. Prior to working on the kiosk, make sure power is off, and the unit is unplugged 

  2. Unlock kiosk and open door fully
  3. Unplug all 3 cables from the credit card reader:
    • Power (white plug with clip)
    • USB
    • Ethernet
      MM6 Mini - credit card plugs.jpg

  4. Unclip the wires from the back of monitor/door frame
    MM6 Mini - monitor plugs.jpg

  5. Unplug the HDMI cable from the monitor
    MM6 Mini - HDMI to monitor.jpg

  6. Unplug the USB-C connector on the monitor (directly below the HDMI connector)
    MM6 Mini - USBC to monitor.jpg

  7. Unplug power from monitor. You will need to remove the zip tie securing the power cable and USB cable for the camera
    MM6 Mini - power to monitor.jpg

  8. Using a 3/8” wrench, remove the nut on the retaining cable on the door side, holding the door as you do to prevent it from swinging open. After removing the nut, remove the cable loop and carefully open the door fully, allowing it to sit open.
  9. Using an 11/32” wrench, remove the 8 nuts securing the hinge to the shell of the kiosk and remove the door
    MM6 Mini - removing hinge nuts.jpg

  10. Place the door face down on a clean, dry, smooth surface with the bottom hanging off the edge of the surface to prevent damage to the credit card reader and scanner hood
  11.  Unplug the USB-C connector at the top of the door for the camera (marked with gray tape)
    MM6 Mini - camera USB-C.jpg

  12. Unplug the USB-C connector (marked with red tape) for the barcode scanner, just below the monitor in the center of the door
    MM6 Mini - barcode scanner USB-C.jpg

  13. Unplug the USB-A connector for the speaker (marked with pink tape)
    MM6 Mini - speaker USB-A.jpg

  14. Remove the 4 X large Phillips head screws toward the center of the door assembly, then remove the 8 X small Phillips head screws around the perimeter of the monitor
  15. Lift the bezel and frame from the screen as one combined unit
    MM6 Mini - lifting bezel and framefrom screen.jpg

  16. Place new monitor face down toward the bottom edge of the work surface with the ports facing to your right
    MM6 Mini - new monitor.jpg

  17. Place the bezel and door frame on the new monitor, making sure all cables are clear of the frame, accessible, and not pinched
    MM6 Mini - bezel and door frame on new monitor.jpg

  18. Reinstall 4 X large Phillips head screws first. You may need to press down on the back of the door frame to get the first screw to engage the threads. Install the 8 X small Phillips head screws around the perimeter of the screen.
  19. Reattach the USB-C cables for the camera and barcode scanner and (pink taped) USB A cable for the speaker
  20. Rehang the door onto studs on the kiosk shell, and hand tighten one nut in each hinge as much as possible. Carefully open the door fully and reinstall all 8 nuts onto the hinge using an 11/32” wrench
    MM6 Mini - rehanging door.jpg

  21. Close the door slightly and reconnect the retaining cable with the Nylok nut, using a 3/8” wrench
    MM6 Mini - reconnecting retaining cable.jpg

  22. Reconnect the HDMI and USB-C connectors to the monitor
  23. Reconnect power, ethernet, and USB cables to the credit card reader. Make sure to connect the ethernet cable to the large, shiny silver port and USB cable to the rightmost port (as shown)
  24. Reconnect the power cable to monitor and secure (along with the USB cable for camera) with a zip tie
  25. Make sure the corrugated loom is aligned over the hinge area to enclose the cables, and bundle all cables as necessary to eliminate excessive slack
    MM6 Mini - loom reinstalled.jpg

  26. The kiosk can now be powered up and placed back online