HP iPAQ H3850 Buttons Replacement

To begin the disassembly of the device, place it on a flat surface with the screen facing down.

Remove the four screws found on the back cover of the device.

Carefully remove the back cover using the plastic opening tool against the grooves along the sides of the iPAQ.

At this point, a yellow ribbon will be connecting both the front and back panels of the device. Carefully use the plastic opening tool to detach the ribbon from the connector pins.

Remove ribbon cable connected to display logic board by pulling plastic clips on both sides towards top of device.

Use plastic opening tool to carefully pull brown ribbon cable from connector.

Use the plastic opening tool to carefully remove the display logic board from its housing.

Unplug connector from the opposite end of the display logic board.

Completely remove component.

Remove three small screws from corners as shown, from the motherboard using phillips head screwdriver.

Use your hands/plastic opening tool to carefully lift the mother board out of housing.

Locate two screw holding silver button logic cover, use 00 screw driver to remove cover.

Use 00 Philips screwdriver to remove two screws at bottom of device.

Use plastic opening tool to remove button logic board.

Replace the old button logic with new replacement parts.