How to fix a Philips Sonicare DiamondClean HX9340 when it is getting less powerful or has a weak brush.

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First you need to open the toothbrush. This can be achieved by applying pressure to the lower end of the toothbrush which will alow the removal of the bottom cap.

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Once the bottom cap is removed, use a screwdriver or a knife to release the actual insides of the toothbrush.

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Once you have the insides out, you have to look for this area.

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The magnets are secured by two screws. One is easily accessible on the back of the toothbrush.

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Apply some pressure to remove the circuit board and get access to the screw holding the magnets on the front side.