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Digital Wireless Doorbell 36 Tunes MM-T145
Brand: Generic / OEM
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Audited BOM: 12 Components
RMA Chain & Defect Intelligence
Root cause causal graph linking factory engineering flaws to verified consumer return reasons.
⚡ Causal Link: Defect to Consumer Return
Failure in the RF module soldering (ENG-001) causes signal loss, leading to RMA-001 and connection complaints (REV-001, REV-005).
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