nokia n70, music player and loud speaker automatically started

please help me,i have nokia n70, music player and loud speaker automatically started duiring calling and the call disconected automatically or startup automatically from itself. I loaded it new software , clean the mean bord, also i changed keybade ic and i changed the whole keypad board by all this solution i can not solive this problem. Plzzzzzzzzzzzz............. suggest aappropriate solution

change ur keybord .
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coil falt change coil then work coil is damagr

check sim and change panel.