Interlink VP4550 Laser Replacement

Turn the phone over to where the battery compartment resides.

Remove the battery compartment door by pushing down on the door with your thumbs and sliding the door off of the bottom of the device.

Remove battery.

Use a Phillips #0 screwdriver to remove the screw in the middle of the battery compartment.

Pry open the case body with the plastic opening tool. Start at the bottom of the device and work toward the top. You will hear a "click" sound as the sides open.

Carefully pull the wire connectors out of the white connector gauge to completely separate the front and back pieces.

Find the lever on the right side of the back half of the device.

Insert the tip of the lever into the square indent on the underside of the button.

Use a Phillips #0 head screwdriver to remove two screws; one on either side of the circuit board.

Slide the circuit board down from the tab located underneath the top of the back half

Use tweezers to gently remove it if it doesn't come out.

Use desoldering braid to remove the red and black wires attached to both the circuit board and the laser bulb.

When you are ready to attach the new laser bulb, use a soldering iron to solder the new bulb's wires to the circuit board.