Introduction

This guide describes how to restore the back cover of UC5xx series controller to prevent waterproof problem.

Guide

1. Ensure the sealing ring is properly installed around the device, free from stains or foreign matters.

2. Put the back cover onto the device with correct direction and fix the 4 screws with the order of cross (recommended torsion: 4.5~5 kgf). When fixing the screws, initially tighten each to 80 to 90% of their full depth, and then fully tighten them all.

3. Fix the screw caps on the screws.

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