Fujifilm X100V Main board Replacement

Peel off leatherette on the back left side, near the LCD and the viewfinder. It reveals two screws.

Unscrew five screws. No need to touch the pair near the mounting hole.

Unscrew two screws.

Carefully pry off the port cover panel together with the flap cover. Try not to damage the spring.

Unscrew these

Open the LCD panel

Unscrew two screws near the top

Note that they are of different length, the one near the viewfinder is longer.

Carefully pull the cover out. It may be held by the two blocks of thermal paste (yellow markers).

Pull off the white ribbon cable. Before pulling out the orange one, unlock the bar on the connector. See red markers.

Use a thin tip spludger to unstick rubber foam near the viewfinder that may be holding the back cover.

Peel off black (and one white) sticky patches that cover connectors.

Remember which patch goes to which spot.

Pull off the white ribbon cable (yellow marker)

Unlock and disconnect orange cables.

Unsolder the speaker.

Unscrew four screws

Slightly bend the board to release it from the plastic hook (yellow marker)

Disconnect two ribbon cables.

Unsolder four wires going to the battery.

Peel off the round foam pad and all patches and reattach them to the replacement motherboard.

Be careful with the patch with copper foil (not on the picture), it is fragile.

I am rather ashamed, but hey, it works!

My Hakko FX888D could not sufficiently heat the pads, I had to use a bigger soldering iron.

Connect and lock the wider cable

Insert the narrow cable. It is rather fiddly, you need to push it from the side with a pinzette.

Push the board in place and under the hook.

Connect and lock all the numerous upper side ribbon cables.

Solder the speaker

Screw the board with four screws.

Put in place sticky patches.

Connect two ribbon cables.

Put in place two blocks of thermal paste