Echo Dot 3rd Generation Troubleshooting - iFixit

Echo Dot Teardown - iFixit

Echo LED/Microphone Board Replacement - iFixit Repair Guide

Seeing inside: What's 's fourth-generation echo dot got? - EDN

Echo Dot 3rd Gen Disassembly - iFixit Repair Guide

Echo Dot 3 Mic/LEDs/Button Replacement - iFixit Repair Guide

Echo Dot 2nd Generation LED/Speaker Board and Microphone Replacement - iFixit Repair Guide

Echo Show 5 Repair - iFixit

Teardown: Echo Dot gets improved sonic performance - EDN

Echo Dot Teardown - iFixit