Einleitung
Removing the buttons can be helpful if they are worn down. However, if the buttons aren't working, it is possible that the problem may have more to do with the circuit board than the buttons themselves.
Werkzeuge
-
-
Now remove the two batteries by pulling on the cloth black tab.
-
If this tab is not visible, use the flat head screwdriver and gently pry out the batteries by pushing on the positive end (opposite the spring).
-
-
-
Using a Philips #0 or #00 screwdriver, locate and unscrew the four screws holding the back cover on the device.
-
-
-
Take the plastic opening tool and insert into the seam between the two covers and pop off the cover then set it aside.
-
-
-
Locate the brown serial connector on the left side of the device. Using the flat head screw driver, push the little tabs (one on each side) out towards you as pictured.
-
They should extend about 1/16 of an inch (1.5 mm).
-
Now take the screwdriver/tweezers and gently pry out the serial tab as shown .
-
-
-
Take the plastic opening tool and gently pry the circuit board out of the plastic tabs around the perimeter located as shown.
-
You must also pry the circuit board away from the battery case (picture 2).
-
Now gently lift up the circuit board from the right side and set it on the cloth.
-
To reassemble your device, follow these instructions in reverse order.