Nokia 2220s slider full keyboard Problem Solution
Here’s a solution for Nokia 2220s ” keypad problem not working” , this solution paths line the entire keyboard matrix circuit and connecting Nokia 2020 slide for easy tracing and troubleshooting keypad problem or do not have answered .
A slider phone like Nokia 2220 slide , navigation keys function as left , right, select , up, down , left, right , send and end keys were assembled and insulated wire flexible cable so if any or all of these keys is not working or not working , then you can first check the flex cable or try to install it with a new replacement .
The numeric keys as 1 , 2, 3 , 4, 5 , 6 , 7, 8 9, * , 0 and # are all mounted on the main PCB board.so
Connecting nokia 2220 slider used an ESD -EMI filter located or mounted near the LCD pin connector flex . The numeric keys as asterisk (*) , (0) or space and the # sign is connected to a filter coils mounted at the bottom of PCB board nokia 2220s .