A keypad is a set of buttons arranged in a block or "pad" which bear digits, symbols or alphabetical letters. Pads mostly containing numbers are called a numeric keypad. Numeric keypads are found on alphanumeric keyboards and on other devices which require mainly numeric input such as calculators, push-button telephones, vending machines, ATMs, Point of Sale devices, combination locks, and digital door locks. Many devices follow the E.161 standard for their arrangement.
Nokia C3-00 keypad malfunction Solution
MODEL
NOKIA C3-00
PRODUCT TYPE: RM-614
PROBLEM
KEYPAD MALFUNCTION
PROCEDURE'S
DISMANTLE C3-00
REMOVED KEYPAD iC USING FLUX / SOLDERING IRON / LED
AND JUMPER KEYPAD ON BOARD INTERFACE
SOLVED!!!
Nokia X3-02 keypad Solution
MODEL
NOKIA X3-02
PRODUCT: RM-639
PROBLEM
KEYPAD MALFUNCTION
KEY ERROR = CALL / 1 / 4 / 7
ACTION TAKEN
DISMATLE X3-02
REMOVED KEYPAD iC
JUMPER KEYPAD iC
JUMPER SOLUTION FOR NOKIA X3-02
AFTER...
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