¶ Step One：
- Loosen and remove the four screws on the bottom cover by using a Phillips screwdriver.
¶ Step Two：
- Unplug the UV lamp power cord and remove the bottom shell.
Note: Do not tear the UV lamp power cord when removing the bottom shell.
¶ Step Three：
- Take a picture of the cable. Remove the cable, loosen the screws, and take out the mainboard and touchscreen.
¶ Step Four：
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- Loosen the three screws on the mainboard, remove the touchscreen, and replace it with a new one.
¶ Step Five：
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- Tighten the three screws to secure the touchscreen.
¶ Step Six：
- Connect the cable to the mainboard and fasten the two screws to secure the touch screen.
¶ Step Seven：
- Install the bottom shell back on the machine, connect the UV lamp power cord, and tighten the four screws of the bottom shell.
