Echo Dot 3rd Generation Speaker Replacement - iFixit Repair Guide
Echo 2nd Generation Speaker Replacement - iFixit Repair Guide
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Echo Dot 3rd Generation Motherboard Replacement - iFixit Repair Guide
Echo Dot 5th Generation Speaker Replacement - iFixit Repair Guide
Echo Dot 5th Generation Switch PCB Replacement Replacement - iFixit Repair Guide
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Echo Teardown - iFixit
Teardown: Echo Dot gets improved sonic performance - EDN
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Echo Dot 2nd Generation Speaker Replacement - iFixit Repair Guide
The second-gen HomePod may be easier to repair than the first
Echo Dot 2nd Generation LED/Speaker Board and Microphone Replacement - iFixit Repair Guide