Technologytech

How Do I Clear The Cache On My LG Smart TV?

how-do-i-clear-the-cache-on-my-lg-smart-tv

To clear the cache on your LG Smart TV, you can use a power cycle to clear temporary memory, reinstall problematic apps, or clear the web browser's data. This removes accumulated temporary files that cause freezing, slow streaming, and sluggish performance, similar to the buffering issues when YouTube keep stopping on my smart TV.

Why you need to clear the cache on your LG smart TV

Cache buildup, low memory, nearly full storage, or the "Quick Start+" feature can cause an LG TV to run slowly or apps to freeze. Over time, temporary data from apps and the web browser accumulates, taking up valuable space and slowing down system operations. When the cache becomes bloated, you may notice apps buffering during streaming, the interface lagging when switching between channels, or the TV freezing during normal use. Clearing this cached data frees up memory and storage, allowing the TV to run more efficiently and resolve these performance issues.

Power cycle your LG TV to clear temporary memory

A power cycle, also known as a deep restart, is the quickest way to clear temporary memory and force close background apps that may be consuming resources. This method is especially useful if the entire TV feels sluggish or unresponsive.

  1. Turn off your LG TV using the remote or the power button.
  2. Unplug the TV from the electrical outlet.
  3. Wait for 30-60 seconds to ensure all residual power is drained.
  4. Plug the TV back in and turn it on.

This process clears the temporary cache stored in the TV's volatile memory, which can resolve many performance hiccups without affecting your saved settings or installed apps.

Clear an app's cache by reinstalling it

If a specific app is causing issues, uninstalling and then reinstalling it can effectively clear its cache.

  1. Press the Home button on your remote to access the main menu.
  2. Select "Edit Apps List" from the options.
  3. Choose the problematic app from the list.
  4. Select "Remove" to uninstall the app.
  5. Go to the LG Content Store, search for the app, and reinstall it.

Reinstalling the app removes all its cached data and gives it a fresh start, which can resolve persistent freezing, crashing, or login issues.

How to clear the web browser cache and data

To clear the web browser's cache, open the Web Browser app, click the menu button (three dots) in the top right, select "Settings", scroll down to "Clear Browsing Data", and choose "Clear all Browsing Data". This process removes the browser cache, history, and cookies, which can improve browser performance and protect your privacy. After clearing, you may need to re-enter login credentials for websites you had previously saved.

Disable Quick Start+ to prevent future slowdowns

The "Quick Start+" feature can contribute to performance issues over time because it keeps the TV in a low-power standby state, allowing apps and cached data to accumulate without a full reset. Disabling this feature forces the TV to perform a more thorough restart each time it powers on, which helps prevent cache buildup and memory fragmentation.

  1. Press the Home button and navigate to Settings.
  2. Select "General" from the settings menu.
  3. Find and select "Quick Start+".
  4. Toggle the feature to "Off".

Once disabled, the TV will take slightly longer to turn on, but it will run more consistently over time by clearing temporary data during each startup cycle.

Frequently asked questions

Will clearing the cache delete my personal data or settings?

Clearing the cache on your LG Smart TV will not delete any personal data or settings. It only removes temporary files and data related to website and app usage. However, when you clear the cache, you may need to re-enter login credentials for certain apps or websites.

How often should I clear the cache?

Clearing the cache once every few months is generally sufficient. However, if you notice any performance issues such as slow loading times or freezing, clearing the cache can help resolve these problems.

Will clearing the cache improve streaming quality?

Clearing the cache can help improve streaming quality in some cases. If your TV's cache is filled with unnecessary files, it can slow down the streaming process. Clearing the cache frees up storage space, allowing for smoother streaming and potentially resolving buffering or lagging issues.

How do I reset a smart TV?

If you need to reset a smart TV to its factory settings, the process differs from simply clearing the cache. A factory reset erases all personal data, settings, and installed apps, returning the TV to the state it was in when you first purchased it. This is a more drastic step and should only be used if clearing the cache and reinstalling apps does not resolve severe performance or software issues. On LG Smart TVs, a factory reset is typically found under Settings > General > Reset to Initial Settings.

Sources

The steps on this page were checked against the following documentation. Last verified 17 September 2026.

  1. LG — https://www.lg.com/ca_en/support/product-support/troubleshoot/help-library/cs-CT52001643-201532…
  2. LG — https://www.lg.com/ca_en/support/product-support/troubleshoot/help-library/cs-CT52001643-201537…
  3. Pocket-lint — https://www.pocket-lint.com/i-gave-my-lg-tv-a-speed-boost-with-quick-tweaks/
  4. Whizz-experts — https://whizz-experts.com/support/smart-devices/lg-tv-slow-performance/
  5. Pocket-lint — https://www.pocket-lint.com/lg-tv-memory-optimizer-setting/

About the author

Aprilette Mortenson is not just a contributor; she's a visionary writer hailing from Copenhagen, Denmark. With a laser focus on the crossroads of technology and renewable energy, her writings on Robots.

View all 78 articles by Aprilette Mortenson  ·  Our editorial policy

Leave a Reply

Your email address will not be published. Required fields are marked *