Tips:
Ⅰ:If you received the product with some marks on the screen, please don't worry, this is normal phenomenon, which may caused by long-distance transportation.
Ⅱ:You only need to keep lock key on and press the clear on, then the marks will be erased and you can start writing.
Ⅲ:If the lock key is on, but the clear on still not work, you can try to the change battery for the product or contact us for After-Sales Service.
Clear Screen Content:
Make sure that the lock key is on. Press the clear on once can clear the screen content;
As it takes about 1-2 seconds to clear the screen, it's normal that you cannot write on the screen during the clear period.
Even in locked mode. you can still write on the screen.
How to Replace the Battery:
a.Use a screwdriver to remove the screws from the battery cover.
b. Since the battery is closely contact with the shrapnel, you need to wipe your hands or remove the battery with a blade or other tools when replacing the battery, and then replace a new battery.
c. Reinstall the batteny cover and tighten the screws.(Pls pay attention to the positive and negative direction when placing the battery)
Specification:
Size:15in
Color: Grey
Material: ABS+LCD
Battery type: CR2016*2