CAT S40 - Motherboard

Guide with all the necessary steps so that you can repair any fault in the CAT S40 yourself.

Difficulty
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Tutorial: Step by step

Step 1 Back case

Remove the six side screws, the top two and the bottom two.

We remove the side shields and remove the casing.

Step 2 Intermediate housing with loudspeaker

Remove the two screws that hold and disengage. It is not necessary to remove the battery.

Before removing it completely, we will desold the speaker.

Step 3 Disconnect components

We disconnect the audio connector and remove the screw that holds it before disengaging it. We also removed the cameras.

Step 4 Disconnect components

Remove the charging connector, unsolder and remove the vibrator and disconnect the flex screen and the proximity sensor.

Step 5 Motherboard

We can now remove the plate.

Video Tutorial summary

In this video you can watch a quick summary of the tutorial, but we recommend to follow the complete tutorial, with its explanations and detailed images.
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