If you’re trying to update sling tv app lg tv and the update button won’t show—or Sling keeps crashing after an update—your TV is stuck in a state that’s easy to fix. Most issues come from webOS/app compatibility, storage and connection problems, or a corrupted install. Follow the steps below in order to get Sling TV updated and streaming again.
For more help, see our Fix the Sling TV App by Device (Roku, Fire, Samsung, LG) guide.
Check Compatibility Before You Update
Confirm your LG TV model and webOS version
Before you update, make sure your LG TV can run the latest Sling TV release. On most LG sets, open Settings → All Settings → About This TV (or Support) and note the webOS version and TV model number. If your webOS version is very old, the LG Content Store may hide updates or keep installing the same outdated app build.
- Open Settings → About This TV
- Write down your webOS version and model
- Proceed only after you confirm they meet Sling’s current app requirements in the LG Content Store listing
Make sure Sling TV still supports your device
Support can change by model or region, so the app may appear but not update properly when the service no longer supports your device generation. In the LG Content Store, search Sling TV and check whether the listing shows an update option or only the current version.
- Open LG Content Store
- Search for Sling TV
- Check whether the listing shows Update or only Open
Check storage space and network stability
An interrupted download is one of the fastest ways to end up with a broken update. Sling TV also needs stable bandwidth for streaming and for the app to finish downloading assets.
- In TV Settings, check free storage (run Storage or Device Care if available)
- Reboot your Wi‑Fi router (unplug 30 seconds, plug back in)
- Ensure the TV is on a stable connection (avoid streaming on other devices during the update)
Update the Sling TV App on LG TV
Update from the LG Content Store
The LG Content Store is the correct place to get the official Sling TV update. If the update is available for your device, this method installs it cleanly.
- Press the Home button on the LG remote
- Open LG Content Store
- Find Sling TV
- Select Update (or Update All if shown for apps)
- After the update finishes, fully close and relaunch Sling TV
Refresh the app if no update appears
If the store doesn’t show an update, don’t repeatedly reinstall right away—refresh the app and re-check for changes after restarting the TV.
- Restart the TV using Power → Restart (not just screen-off)
- Wait until the TV fully boots to the Home screen
- Open LG Content Store again and check Sling TV one more time
- Relaunch Sling TV
Reinstall Sling TV when the update fails
When an update fails (or the app loops on the same version), reinstalling forces LG to download the latest build available for your device.
- Press Home → LG Content Store
- Go to Sling TV and choose Remove (if supported) or delete the app
- Restart the TV
- Open LG Content Store → reinstall Sling TV
- Launch Sling TV and sign in (if prompted)
Fix Common Sling TV Update Problems
Clear the app cache and data
A corrupted app cache can block streaming, stall updates, or cause black screens right after installing a new version. Clear the Sling app’s stored data by signing out and back in or reinstalling (depending on how your LG interface behaves).
- Open Sling TV and sign out of your account
- Close Sling TV completely
- Relaunch Sling TV and sign back in
- If it still fails, remove Sling TV and reinstall it from LG Content Store
Sign out and back into your Sling account
Authentication tokens can become invalid after updates. Logging out and back in forces a new token and clears many “stuck loading” or playback start failures.
- Open Sling TV
- Go to Settings (or account/profile area)
- Choose Sign Out
- Restart Sling TV and sign in again using your email/credentials
Remove and add the app again after a failed install
If Sling TV installs but doesn’t launch or keeps showing an update loop, remove the app and add it again so the TV downloads a fresh copy.
- Delete Sling TV from the TV
- Power off the TV, wait 20 seconds, then power back on
- Reinstall Sling TV from LG Content Store
- Launch the app once and try streaming a live channel
Troubleshoot LG TV Issues That Look Like App Problems
Restart the TV and power cycle the modem
Updates can fail because the TV can’t reach Sling services reliably. A full restart plus modem power-cycle fixes many network-related download and playback problems.
- Restart your LG TV (use Power → Restart)
- Unplug your modem/router from power
- Wait 60 seconds
- Plug it back in and wait until the internet is fully restored
- Launch Sling TV and attempt playback or check the app again
Fix a black screen, blank screen, or no picture
A black screen can be caused by Sling app corruption, but also by display settings or HDMI handshake problems. Start with the simplest fixes before changing deeper system settings.
- Fully close Sling TV, then relaunch it
- If using HDMI, unplug the HDMI cable and plug it back in
- In TV settings, ensure Picture Mode isn’t set to an unusual custom profile that affects brightness
- Re-check Sling TV after the app update or reinstall
Resolve lines, flickering, and display glitches
Display glitches can look like app failures. If lines or flicker happen only on Sling, focus on Sling playback; if they happen across inputs/apps, treat it like a TV system issue.
- Restart the TV
- Switch to a different HDMI port (if applicable)
- Update the LG TV software from Settings → Software Update
- Launch Sling TV again and confirm whether the flicker is isolated to Sling
Reset LG TV settings when the system is unstable
If the TV UI becomes unstable or the app behaves unpredictably, resetting settings can restore proper display/network behavior without wiping everything.
- Go to Settings → All Settings
- Find General (or Support) → Reset / Reset to Initial Settings
- Choose Reset Settings (not factory reset, if the option exists)
- Reopen Sling TV and try playback
Handle Sling TV Account and Subscription Changes
Update your payment method for Sling TV
If billing fails, Sling may restrict access so the app won’t stream even after updating. Fix payment issues in your Sling account.
- Sign in at Sling.com (on a phone or computer)
- Open Account → Billing (or Payment Methods)
- Update the card/verification details
- Return to the TV and relaunch Sling TV to refresh authorization
Upgrade or change your Sling package
Some content availability changes when you switch packages. If Sling loads but channels won’t play, confirm your current plan includes the channels you’re trying to watch.
- In the Sling account, review your current package
- Make changes if the channel lineup doesn’t include what you selected
- Relaunch the Sling app after the plan change completes
Verify account status if the app will not launch
If the app won’t launch or keeps throwing authorization errors, your account status may be restricted. Verify your email, password, and login state.
- Log out inside Sling TV
- Sign in again carefully, using the correct email
- If it still won’t launch, reset your password at Sling.com and try sign-in again
When to Use a Full Reset or Get Support
Try a soft reset before factory resetting
A soft reset can clear stuck software states without wiping your TV completely. Do this before factory resetting.
- Unplug the TV power
- Wait 60 seconds
- Plug the TV back in and turn it on
- Relaunch Sling TV and check whether the update/playback works
Back up your TV settings before a reset
Factory resetting wipes your installed apps and can reset network and display preferences. If you must reset, back up what you can first.
- If your LG system offers a backup option under Settings → Backup & Restore, enable it
- Note your Wi‑Fi network name/password
- Recheck any custom picture/audio settings you care about
- Only then proceed with a factory reset option if required
Contact Sling or LG support with error details
When you’ve cleared cache, reinstalled, and power-cycled—and the problem persists—support can pinpoint the cause faster with exact details.
- Write down any error codes shown in Sling (for example, 4-310, 10-101, 9-803, 21-20, or an authorization “8-xxx” code)
- If Sling loads but streams fail, include whether your connection is wired or Wi‑Fi
- Contact Sling Support or LG Support and provide the error code plus your TV model/webOS version
Helpful answers
Frequently Asked Questions
Why won’t the Sling TV app update on my LG TV?
The most common causes are an outdated webOS version, low storage, a weak internet connection, or temporary app/store errors. Restart the TV, check for LG system updates, and then try reinstalling Sling TV. If the update still doesn’t appear, delete the app from LG Content Store, restart the TV again, and reinstall so the TV downloads the newest available build.
Can I force an update for Sling TV on LG TV?
Yes. If the update does not appear in the LG Content Store, remove the app, restart the TV, and install Sling TV again. This forces a clean download of the latest version available for your specific LG model and webOS version.
Will resetting my LG TV fix Sling update issues?
A reset can help if the TV software is stuck or corrupted, but it should be a last resort. Start with a power cycle, app reinstall, and network checks first. If the TV becomes unstable or multiple apps misbehave after the Sling reinstall, then perform a softer settings reset before factory resetting.
Why is Sling TV showing a black screen on my LG TV?
A black screen can come from app corruption, HDMI/display settings, low bandwidth, or a TV software issue. Try restarting the TV, updating or reinstalling the Sling app, and checking picture/display settings. If you use HDMI, reseat the cable and confirm the correct input.
Do I need to update my Sling payment method to keep the app working?
Sometimes. If your subscription has billing problems, Sling may restrict access until payment is updated. Check your Sling account if the app opens but won’t stream, and update your payment method in Account → Billing.