TV Picture Quality Looks Worse After Update

Your Settings Got Reset -- That Is Almost Certainly It

This is by far the most common explanation, and it catches people off guard every time because TVs rarely announce that they have changed your picture settings during an update. You had everything dialed in, the TV updated overnight, and suddenly the picture looks washed out, overly smooth, or just wrong.

Here is what typically gets changed and how to fix it.

Picture Mode

Check which picture mode your TV is set to. After an update, many TVs revert to "Standard," "Eco," or "Vivid" mode. Standard and Eco modes reduce brightness and contrast to save energy. Vivid mode cranks up oversaturation and sharpness in ways that look impressive in a store but terrible at home.

For most viewing environments, Cinema, Movie, or Filmmaker Mode is the most accurate. These modes disable aggressive processing and display content closer to how it was mastered. The picture may initially look "warmer" or "dimmer" than you are used to, but give it 20 minutes -- your eyes adjust, and you will notice far more natural skin tones and detail.

Motion Smoothing Got Turned Back On

This is the single setting change people notice most. Motion smoothing (called TruMotion on LG, Motionflow on Sony, Motion Rate on Samsung, and various other names) interpolates extra frames between the real ones to make motion appear smoother. The result is the dreaded "soap opera effect" -- everything looks like it was shot on a camcorder, even cinematic films.

If your content suddenly looks unnervingly smooth and cheap, find the motion smoothing setting in your picture options and turn it off or set it to the minimum. On most TVs, it is buried under an "Advanced Settings" or "Clarity" submenu.

Sharpness and Edge Enhancement

Factory default sharpness settings are almost always too high. Excessive sharpness creates visible halos around edges and makes everything look artificially harsh. After an update resets your sharpness to the default value (often 50 on a 0-100 scale), the image will look notably different from a properly calibrated setting.

For most TVs, a sharpness setting between 0 and 10 produces the best results. This sounds counterintuitive -- surely more sharpness means a sharper picture? It does not. The sharpness control on a TV is an edge-enhancement filter, and the source material already has all the real detail it is going to have. Turning it up adds artificial ringing around edges.

Backlight and Energy Saving

Eco mode and ambient light sensors can dramatically reduce brightness. If your picture looks dim or low-contrast after an update:

• Turn off Eco Mode or Energy Saving mode
• Set the Backlight (or OLED Light on OLED panels) to your preferred level
• Disable Ambient Light Detection if you want consistent brightness regardless of room lighting

On OLED TVs specifically, an update may reset the OLED Pixel Brightness limiter, which caps peak brightness to protect the panel. This is worth leaving enabled for longevity, but know that it affects how bright highlights appear.

Color Temperature and Tone Mapping

If skin tones look bluish or the whole image has a cool cast, the color temperature was likely reset. "Warm" or "Warm 2" is the most accurate setting for most content, as it aligns with the D65 standard used in mastering. "Cool" settings add a blue tint that makes the image appear brighter in a store but is inaccurate.

For HDR content specifically, check whether the TV's tone mapping settings were altered. Some updates change how the TV maps HDR metadata, which can make HDR content look washed out or overly dark. Look for settings labeled HDR Tone Mapping, Dynamic Tone Mapping, or HDR Picture Mode and experiment with the options.

It Might Actually Be a Bug

In fairness, firmware updates do occasionally introduce genuine image quality regressions. LG's 2023 OLED lineup had a well-documented issue where an update changed the near-black gamma handling, crushing shadow detail. Samsung has had updates that broke local dimming behavior on certain models.

If you have restored all your settings and the picture still is not right, check the manufacturer's support forum and places like AVS Forum or Reddit's r/4kTV. If it is a real bug, other owners of the same model will be reporting it, and the manufacturer will typically push a fix within a few weeks.

How to Protect Your Settings Going Forward

Take photos of your settings. Before the next update, go through every picture menu and submenu and photograph each screen with your phone. This is tedious but takes about five minutes and saves you hours of frustration later.

Disable automatic updates if your TV allows it. This lets you update on your own schedule after checking forums to see if other users report problems with a new firmware version. The trade-off is that you will not get security patches automatically, which matters more for TVs connected to the internet.

Write down your calibrated values. If you or a professional calibrated your TV with measurement tools, record every setting value. Calibration settings include white balance, color management, and gamma adjustments that you will never remember off the top of your head.

Streaming apps themselves can also change quality. If the issue is specific to one app, check whether it has its own quality settings -- Netflix, for example, lets you set streaming quality per profile, and app updates occasionally reset this. Also make sure your Wi-Fi connection is stable, since a degraded connection forces streaming apps to lower resolution automatically.

Related: TV Has Sound but No Picture (Black Screen) · Why Does My Wi-Fi Keep Disconnecting? · Roku Keeps Restarting on Its Own