MEDION 138,8 cm (55 Zoll) QLED Fernseher (Smart-TV, Dolby Vision HDR, VIDAA Store, Prime Video, Disney+, DAZN, Paramount+, DTS X, Dolby Atmos, PVR, Bluetooth, MD 855600) — Error codes & fixes

Troubleshooting guide for the MEDION 138,8 cm (55 Zoll) QLED Fernseher (Smart-TV, Dolby Vision HDR, VIDAA Store, Prime Video, Disney+, DAZN, Paramount+, DTS X, Dolby Atmos, PVR, Bluetooth, MD 855600). Diagnose an error code and find the fix.

Won't power on

no-power

The soundbar does not turn on, often from a faulty power supply or a blown fuse.

Source: Samsung TV support — no signal / HDMI Confidence: 85% Verified Aug 9, 2026

2 fixes available

Dead / stuck pixels

dead-pixels

The panel has dead or stuck pixels, often a panel defect.

Source: Samsung TV support — no signal / HDMI Confidence: 80% Verified Aug 9, 2026

2 fixes available

No sound

no-sound

The 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

2 fixes available

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