
Samsung · 2025
S90F OLED
42 · 48 · 55 · 65 · 77 · 83″
From
$5,400
Troubleshooting
A pale, flat or too-dark picture usually comes from a picture mode or power setting, not a broken screen. Check these in order.

A pale or flat picture almost always traces to settings. Work through these steps from the top and stop when the picture looks right.
TechRadar says Eco often has very low brightness that drains color and detail. Dynamic and Vivid have the opposite fault, with oversaturated color and exaggerated texture.
Many TVs apply energy-saving rules by default. Tom's Guide says they can cap backlight output and let an ambient light sensor dim the screen as soon as the room gets darker.
Menu names vary by brand and model, so search the picture and general menus rather than expecting an exact path.
If you have changed many settings, start fresh. On Samsung TVs from 2016 to 2025, Samsung's guide shows Settings > Picture > Expert Settings > Reset Picture. If it is greyed out, exit any running app first. Other brands have a similar reset in their picture menus.
An HDR picture can look flat if something in the chain is off. Engadget's Dolby Vision on Netflix guide lists the usual checks, which apply to HDR in general:
For the top streaming quality, Engadget reports a minimum internet speed of 15 Mbps from Netflix and Dolby. See also Dolby Vision not working.
TechRadar recommends checking for a software update on any new TV. Updates can add features and fix problems, and some TVs do not search on their own.
If the picture is dim on every input and every mode after a reset, contact the manufacturer. Check your warranty first.
Related: best TV picture settings.
Good to know
Store sets run in bright, high-contrast modes. At home, TechRadar says most TVs ship in Eco mode, which lowers brightness and makes movies look drab.
Usually not. TechRadar describes Dynamic or Vivid as oversaturated and detail-losing, and recommends Movie, Filmmaker or Standard instead.
Settings cause most cases. If a reset and the steps below do not help, contact the manufacturer, especially if the picture is dim on every input and every mode.
Mentioned in this article
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More troubleshooting

Restart, update, clear the cache, test the network and reinstall in that order. Samsung and Fire TV paths included.

Check the standby light, the outlet, the remote and any surge protector before you assume the TV is broken.

Dolby Vision only shows up when the TV, app, plan, cable, settings and sometimes the soundbar all support it. Here is how to find the broken link.
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