Nokia Asha 202 keypad problem solution using jumpers
If nokia asha 202 keypad is not working. All keys or a few key is not working then you can solve it with diagram bellow.After dis assembly of nokia asha 202 clean whole mother board with electronics cleaner.
Make it dry with hot air and do not apply much heat it can be dangerous for your skin and mother board.Resold this keypad IC and parts that are identified in above keypad repairing diagram for nokia asha 202.
If the device has suffered moisture or water damage or any liquid medium, most of the time the keyboard may stop working due to a short circuit occurred and the oxidation may accumulate due to liquid waste.
Tips for troubleshooting Nokia 202 keyboard malfunctions:
A) Clean the keyboard membrane and the contact pads.
B) Check the flexible cable of the keyboard if it is damaged, you may need to replace the entire flexural matrix of the keyboard if the flexion is already damaged.
C) Identify which particular keys did not work, then trace their connection between the other keys. If all the keys connected in the same line paths do not work and the flex is fine, then you may suspect that the problem lies in the IC of the keyboard filter.
D) Replace the IC Keyboard Filter OR make jumpers.
If re sold of these parts can not solve keypad problem in nokia asha 202 then you have to replace them for solving nokia asha 202 keypad not working problem.
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