Your work area should be clean, lint-free, and with adequate lighting to visualize small print or parts.
The keypad and navigation ball may become loose and fall away from the motherboard, use caution so these items are not lost or damaged.
Remove the rear cover from the phone.
Remove the battery.
Using a small plastic opening tool, remove the lower rear cover.
Remove six screws from the midframe of the device.
Remove the midframe from the phone.
Gently pry the back the plastic tabs that secure the motherboard to the case.
Slowly work your way around the case until the tabs until the motherboard comes free.
Remove the motherboard.