There is a lot of dust on that tiny wheals that trackball is moving,I suppose,so you must disassemble your Blackberry,get to them and clean!
Of course you can always buy a new trackball,but i cleaned mine a couple of times and after it,its like new again!
You can search for the disassemble video on you tube,there is plenty to find, but be careful and thorough as you will have to put it back in the right way.
Last edited by wolfyberry; 08-05-11 at 05:25 AM.
Reason: Wrong link
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