Samsung QLED Q7F2 4K 55 Zoll (138 cm) UHD Fernseher, Q4 AI Prozessor, Quantum Dot für Reale Farben, 4K Upscaling, Knox Security, Gaming Hub, Kostenlose Inhalte, Samsung Vision AI Smart TV — Error codes & fixes
Troubleshooting guide for the Samsung QLED Q7F2 4K 55 Zoll (138 cm) UHD Fernseher, Q4 AI Prozessor, Quantum Dot für Reale Farben, 4K Upscaling, Knox Security, Gaming Hub, Kostenlose Inhalte, Samsung Vision AI Smart TV. Diagnose an error code and find the fix.
No sound
no-soundThe soundbar powers on but produces no audio, often from a wrong input, a loose HDMI connection or a muted source.
Source: Samsung TV support — no signal / HDMI
Confidence: 80%
Verified Aug 9, 2026
Wi-Fi connection failure
wifi-connectThe purifier cannot connect to the app or Wi-Fi, blocking remote control and monitoring.
Source: Samsung TV support — no signal / HDMI
Confidence: 80%
Verified Aug 9, 2026
Remote control not working
remote-not-workingThe soundbar remote does not respond, often due to dead batteries or a pairing issue.
Source: Samsung TV support — no signal / HDMI
Confidence: 80%
Verified Aug 9, 2026
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