Nokia 5250 Keypad Not Working Jumper Problem Solution

In nokia 5250 keypad problem can be due to rust carbon or water damage. in this case keypad parts can be damage or keypad track can be missed from any point. for solving keypad problem in nokia 5250 you can see diagram bellow.

In above diagram there are two main paths these are used for keypad functions and these are controlling keypad options.these red and blue color lines are describing tracks.
For this post you only can clean the board ic and keypad if there is some rust or carbon. you can resold these two parts and can replace these two ic for keypad problem in nokia 5250.
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