Microsoft Surface Laptop 3 15" Safety Precautions

Introduction

Prerequisite-only: Use this guide to perform precautionary steps before beginning repairs on a Microsoft Surface Laptop 3 (15").

Turn on your laptop and allow the battery to discharge below 25% before starting your repairs, as a charged lithium-ion battery can be dangerous if accidentally punctured.
Power down your laptop and unplug any cables.
Close the laptop.

Conclusion

To reassemble your device, follow these instructions in reverse order.

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