screen-flicker Troubleshooting

Screen flickering on the Hisense 55E89Q Fernseher, 55 Zoll (139cm), 4K ULED Mini LED, Smart TV, 144Hz Game Mode PRO, Hi-View AI Engine, AI Smoothmotion, Built-in Subwoofer, Dolby Vision.Atmos, Filmmaker Mode, Hi-Concerto

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

The screen flickers, often due to a refresh rate issue, a loose cable, or a failing panel.

How to fix Screen flickering

Check the refresh rate

Ensure the source device's refresh rate matches the TV's supported rate.

Source: Samsung TV support — no signal / HDMI Confidence: 80% Verified Aug 9, 2026
Difficulty: ★ Est. 5 min

Check the cable

Reseat the HDMI cable and try a different port.

Source: Samsung TV support — no signal / HDMI Confidence: 80% Verified Aug 9, 2026
Difficulty: ★ Est. 3 min

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