so this the image of keypad mat, try to lacate the continuity if the cleaning solution is not working, trace every single connection to find some lost contact.
Basic Troubleshooting for Keypad Malfunction
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Troubleshooting
Keypad malfunction is commonly cause by water damage of just a little bit water and all of the line of keypad are destroyed, to repair this kind of trouble, we must open whole cellphone and try to clean the keypad mat just like this image.
so this the image of keypad mat, try to lacate the continuity if the cleaning solution is not working, trace every single connection to find some lost contact.
so this the image of keypad mat, try to lacate the continuity if the cleaning solution is not working, trace every single connection to find some lost contact.
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