to solve test mode local mode in nokia 1680 and 1681 you can follow a
few steps that i am going to discus in this post and also are define in
diagram that is attached with this post.Nokia E5 keypad illumination LED Backlight problem solution Nokia E5 keypad illumination LED Backlight problem solution
carefully look at the diagram and in it there are a few parts in lined with parrot color.clean these resistances with electronics cleaner and then leave them to dry under electrical bulb for a few mint or apply hot air so that they can be dry.if problem can not be solve then you have to replace them with new parts from any other board.
carefully look at the diagram and in it there are a few parts in lined with parrot color.clean these resistances with electronics cleaner and then leave them to dry under electrical bulb for a few mint or apply hot air so that they can be dry.if problem can not be solve then you have to replace them with new parts from any other board.
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