Samsung TVs are among the most popular televisions worldwide, but like any smart device they can develop issues over time. This guide covers the most common Samsung TV problems and practical solutions to fix them.
Samsung TV WiFi Not Connecting
WiFi connectivity is one of the most frequent Samsung TV complaints. Symptoms include the TV not finding your network, dropping the connection, or showing "connected" but with no internet access.
- Power cycle your TV and router. Unplug both for 60 seconds, then plug the router in first and wait for it to fully start before turning on the TV.
- Go to Settings > General > Network > Network Status > Reset Network. Re-enter your WiFi password carefully.
- Update the TV firmware via Settings > Support > Software Update. Outdated firmware is a common cause of WiFi dropouts.
- If the TV connects to other networks but not yours, the issue may be your router. Try changing the WiFi channel or switching from 5 GHz to 2.4 GHz for better range.
- As a last resort, use an Ethernet cable for a stable wired connection, or add a WiFi extender closer to the TV.
Samsung TV Apps Not Working
Smart Hub apps freezing, crashing, or failing to load is a widespread issue, especially after system updates or server-side changes by Samsung.
- Clear the app cache: Settings > Support > Device Care > Manage Storage. Select the problematic app and choose Clear Cache.
- Uninstall and reinstall the app from the Samsung App Store.
- Reset Smart Hub: Settings > Support > Device Care > Self Diagnosis > Reset Smart Hub. You will need to re-sign in to all apps.
- Check if Samsung servers are down. If multiple apps fail simultaneously, the issue is likely on Samsung's end.
- For older TVs that no longer receive app updates, use an external streaming device such as a Chromecast, Apple TV or Amazon Fire TV Stick.
Samsung TV Black Screen
A black screen with or without sound can indicate anything from a minor software glitch to a backlight failure.
- Try a soft reset: hold the power button on the remote for 10 seconds until the TV restarts.
- Check all HDMI cables and input sources. Switch to a different HDMI port to rule out a faulty connection.
- Shine a torch close to the screen. If you can faintly see the picture, the backlight has failed and the TV needs professional repair.
- Disable Eco Sensor and Ambient Light Detection in Settings > General > Power and Energy Saving, as these can sometimes dim the screen to black.
Samsung TV Flickering Screen
Screen flickering on Samsung TVs is often caused by software settings rather than hardware failure.
- Disable Auto Motion Plus (or Motion Smoothing): Settings > Picture > Expert Settings > Auto Motion Plus Settings > Off.
- Turn off Eco Sensor and Energy Saving mode, which can cause brightness fluctuations.
- Check the HDMI cable. A loose or damaged cable can cause intermittent flickering, especially at 4K resolution.
- Try a different picture mode. If flickering only occurs in one mode, the issue is software-related.
- Update firmware, as Samsung has released fixes for flickering in several software updates.
Samsung TV HDMI Not Working
HDMI problems can prevent external devices such as gaming consoles, Blu-ray players and soundbars from displaying correctly.
- Unplug the HDMI cable from both ends, wait 30 seconds, and reconnect firmly.
- Try a different HDMI port on the TV. If one port works, the original port may be faulty.
- Enable HDMI-CEC (Anynet+) in Settings > General > External Device Manager if your connected device supports it.
- For 4K devices, ensure the HDMI port is set to HDMI UHD Color (or Input Signal Plus) in Settings > General > External Device Manager.
- Test with a different HDMI cable. High-speed or Ultra High Speed HDMI cables are required for 4K and 8K content.
Samsung TV Sound Not Working
Audio issues range from no sound at all to distorted, delayed or intermittent sound.
- Check that the TV is not muted and the volume is up. Press the volume button on the TV itself, not just the remote.
- Go to Settings > Sound > Sound Output and make sure it is set to TV Speaker (not Bluetooth or HDMI ARC) unless you are using an external speaker.
- Run the built-in sound test: Settings > Support > Device Care > Self Diagnosis > Sound Test. If the test tone plays, the issue is with the input source, not the TV.
- For HDMI ARC or eARC soundbar setups, try switching the audio format to PCM in Settings > Sound > Expert Settings > Digital Output Audio Format.
- A factory reset of the sound settings can resolve persistent audio glitches.
Samsung TV Problems After Update
Firmware updates occasionally introduce new bugs. Common post-update issues include apps crashing, WiFi dropping, or settings being reset.
- Perform a soft reset after updating: unplug the TV for two minutes, then plug it back in.
- Reset Smart Hub if apps are affected, as above.
- If the update caused serious issues, contact Samsung support. In some cases Samsung releases a follow-up patch within days.
- To prevent future issues, enable automatic updates so you always have the latest fixes: Settings > Support > Software Update > Auto Update.
Samsung TV Remote Not Working
Remote control issues are common and usually easy to resolve.
- Replace the batteries. Even if the remote light blinks, low batteries can cause intermittent failures.
- Re-pair the remote: hold the Return and Play/Pause buttons simultaneously for 5 seconds.
- Remove obstacles between the remote and the TV's IR sensor. LED light strips and some soundbars can interfere with the signal.
- Try the Samsung SmartThings app on your phone as a temporary remote while troubleshooting.
When to Call a Professional
If your Samsung TV has physical symptoms such as a cracked screen, persistent backlight failure, or burning smell, it needs professional repair. Contact Manly Electronics for Samsung TV repairs on the Northern Beaches.
Original 2011 Review: Samsung UA55D8000
This section covers issues specific to the Samsung UA55D8000, a 55-inch LED 3D Smart TV released in 2011. While this model is long discontinued, many of the WiFi and app issues described below were common across Samsung smart TVs of that era.
Known Problems
- Poor image quality on DVDs and standard-definition digital TV channels, likely due to an MPEG filter issue. Particularly noticeable in moving details. The TV lacked noise filter settings.
- Difficulty connecting to BigPond (Telstra) WiFi, including password rejection and intermittent connection loss. Replacing the ISP-supplied router with a third-party Netgear or TP-Link router resolved these problems.
- Samsung apps freezing with a "connectivity problem" message, even while WiFi appeared to be working.
- BigPond app sign-in failures showing "incorrect password" despite the same credentials working on a PC.
- YouTube app defaulting to popular clips with poor search usability via the TV remote.
- Inconsistent DLNA streaming from Windows Media Player, particularly for MP4 video files.
- Insufficient internet speed for streaming. The BigPond app required at least 3.5 Mbps, and ADSL connections of 6 Mbps could not handle multiple simultaneous streams.
Solutions That Worked
- Updated the firmware, which was four revisions behind at purchase. Some app freezes persisted even after updating.
- Used a streaming media player (Apple TV or Chromecast) instead of built-in Samsung apps for reliable playback.
- Connected a Telstra T-Box (now Telstra TV) via HDMI for better resolution and reliability than the Samsung BigPond app.
Summary
Despite its issues, the UA55D8000 delivered outstanding HD picture quality with vibrant colours and striking contrasts. The 3D functionality worked well in simulated mode, though 3D TV content never became widely available. Samsung's news ticker app was a notable feature for its time.
The lesson remains relevant: built-in smart TV apps are often the weakest link. A dedicated streaming device connected via HDMI consistently outperforms built-in apps.
July 2011, revised April 2026 Tags: Audio Visual, WiFi