- Power off the printer, open the front door, forced to open the LCD two brackets.
2. You will see the LCD inside.
3. The SD card is located inside the slot. If there is any problems on transfering, please re-insert it or replace a new one.
4. Use a Phillips screwdriver to remove the 4pcs screw and remove the display (note that the cable is normal when moving)
5. Power on the printer, and quickly click the same position on the touch screen interface (position in the display interface) until hearing a beep sound(about 20-50 times);