keypad 789 keys not working
In my iphone4 789 keys are not working if i press 7 key their top key 4 or bottom key * is displaying. the entire row is not working. yesterdays i replaced the lcd screen from repair center.On home screen its working fine but in the sub screen that particular row is not responding.example if i touch any option on that particular row up or below option is selecting. please provide the solution.
Update
Any dust is not there on the screen, please provide the solution.
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