I will press the button "a" and it types "ou", my buttons are just all mixed up also my send button types out "jk"
This problem is caused by contamination UNDER the trackball. Its picked up from sticky/oily fingers operating the tracker ball.
1. Checkout web for videos on dismantling the case (easy, but you WLL need a T4 (or is it T5?) multi-point screwdriver (ebay))
2. After accessing the PCB, unclip the tracker ball (magnifying glass and small screw driver). This lifts out as a single assembly.
3 .The area of the PCB reviled under TB now needs cleaning with a cotton wool swab, soaked in a de-greasing solution. DONT use water (even soapy), as this is slow to dry.
- IPA (Isopropyl alcohol)
- surgical spirit etc.
These will not harm circuit board or components, but MAY affect some plastics. Test small area if unsure
The underside of TB assy and ball should also be cleaned.
A clean swab damped in mild soap solution can be used to do general cleanup of dirt on white keyboard membrane, case edge grooves etc. allow to evaporate
DONT touch degreased areas with fingers as this will re-contaminate
4. Allow solution to evaporate (around 1 Min.)
5. Re-assemble tracker ball (clicks into position)
Re-assemble case using on-line video (step 1)
Apr 06, 2010 |
RIM BlackBerry Bold 9000 Smartphone