Leica Minilux E02 fix, Lens Flex Cable FPC replacement

Unscrew: Remove the 4 screws on the bottom case and the single screw on the back near the viewfinder.

Unscrew the 4 screws on the left and right case.

Remove bottom case first. Please note the black plastic within the red rectangle. I am uncertain about its original position.

Then remove the top case gently.

Lastly, remove the front case. The Brown and Orange pair connect to flash capacitor, discharge first.

Unscrew the 4 screws around the lens protection cover, and then remove the lens protection cover.

Add some marks on the ring for later reinstallation(This step is unnecessary if the lens barrel and other structures remain unchanged).

Use one finger to cover the rectangular area to prevent the spring from flying away. Then, remove the spring.

Remove the focus gear.

Unscrew 4 screws, remove film guide

Unscrew 2 screws, remove light and FPC contact shade

Unscrew the 6 screws to detach the lens module. You can remove the lens module now or later.

Unsolder the FPC joints.

Unscrew the two screws hidden under the FPC and take the FPC out.

Do not attempt to remove the FPC in the same way shown in Image 2.

Now the lens module can be taken out.

Unscrew the 4 screws securing the rear lens guide. Carefully remove the guide, making sure not to lose the spring that connects the three(or two) pieces. Keep these pieces together.

Locate the two contact points on the rear lens rings. You may need a special tool('井') to loosen these points, such as a small screwdriver or tweezers may be okay too(I haven't tried).

Remove the lens barrel, ensuring that the other two barrels remain in their original positions. Misaligning these barrels can be difficult to correct.

Unscrew 3 screws, take rear element group out.

Take the shutter and aperture module out.

Desolder the existing FPC, paying special attention to the two chips marked with circles, ensuring they both maintain their original orientation. Carefully desolder these chips and transfer them to the new FPC.

Unscrew 1 screw on FPC, unsolder 4 joints of relays.

Unscrew 3 screws.

Unscrew 1 screw on FPC, unsolder 4 joints of optocoupler. Be aware the ring and ring position points by arrows. It's easy to fall off, so I keep it as the last step, after completely remove FPC, install the new one immediately.

There are some plastic pads stick on old FPC, remove and install them on the new FPC.

See these images for install Shutter and Aperture movement part back.

First screw rare element group and shutter module together.

Align the center of the shutter FPC with the notch on the front of the lens barrel. Gently push the lens module back into place. You may hear a click as the rear module locks into position. Slightly rotate the rear module to ensure it's securely locked.