KE850
°This product’s keys on the LCD screen are touch keys.
°Be sure to read “Cautions for Touch Keys” before using this product.
features
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CAUTIONS FOR TOUCH KEYS
1.Make sure your hands are clean and dry.
°Remove all moisture from the surface of your hands or the touch keys in a humid environment.
Touch keypad
2.You do not need to press hard on the touch keys to make them work.
Do not subject the product to severe impact, as this may damage the touch key sensors.
3.Use the tip of your finger to press exactly on the touch key you want, being careful not to touch the keys for other functions.
4.When both the home screen and touch key lights are off, pressing a touch key will not turn
on the home screen light. Press 
and the home screen light will turn back on(touch keys do not work when the touch key lights are off).
5.Touch keys may not work normally if a mobile phone case or plastic cover is covering them. Also, touch keys may not work if you are wearing gloves.
6.Keep metal and other conductive materials away from the surface of the touch keys, as contact with them may result in an error.
7.This phone does not allow to use a pen or a stylus to select menu. If you use a pen or a stylus, the menus cannot be activated properly. Use the phone by only finger.
Hard keys