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Sonos Beam Gen 2 No Audio from TV HDMI ARC: Diagnosis Guide
📋 AI-generated diagnosis based on technical documentation Generated by ReeFix AI · Sources: technical and specialist documentation (see Sources section) Revision of 25/05/2026
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⚠️ SAFETY WARNING / ELECTRICAL RISK. This device operates with High Voltage or residual charges. Physical intervention is extremely dangerous and it is strongly recommended to entrust it to a qualified specialized technician to avoid electric shocks. ReeFix provides this diagnosis EXCLUSIVELY for educational and informational purposes.
Flash Diagnosis: Sonos Beam Gen 2 - No Audio from HDMI ARC
The "no audio" problem from the Sonos Beam Gen 2 via HDMI ARC/eARC (with or without "dropout error") mainly stems from three causes.
Faulty HDMI Cable (40%): Often manifests as intermittent or total audio loss after moving the cable. An unsuitable or damaged Cavo HDMI 2.1 certificato is the most common culprit.
Software/Firmware Glitch (30%): If the problem started after a TV or Beam firmware update, or if a restart temporarily resolves it, a bug is likely.
Physical HDMI Port Damage (20%): Bent/corroded pins on the HDMI port of the Beam Gen 2 or the TV make the connection unstable.
Quick Checks: Try replacing the HDMI cable with a new, certified one. Perform a complete power cycle (disconnect both devices from the mains). Check and update the firmware of both the TV and Sonos Beam. If the problem persists, try a factory reset of both.
Operational Decision: If cable replacement or reset resolves the issue -> repair yourself. If the HDMI ports show damage or the problem persists after all software attempts -> contact a technician or replace the device.
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⭐ Verified ReeFix Partners
This diagnostic report is generated using an artificial intelligence system (RAG) based on the aggregation of online data. The moderation by Luca Chia (Electronic Expert) validates its logical coherence and technical plausibility regarding the described symptoms, confirming the correctness of the AI's diagnostic reasoning, without however constituting an absolute guarantee of resolution for individual cases.