Question 1

the picture looks really dark and washed out in hdr mode on netflix and disney+, standard mode is fine.

Accepted Answer

DIAGNOSIS Incorrect picture settings for HDR content. The Select Series uses a basic HDR processor that needs manual tuning. FIX While playing HDR content, press the Star (*) button on your remote. Go to Picture Settings. Set Picture Mode to "Bright HDR" or "Vivid HDR." Turn off "Auto Brightness" and "Content Refresh Rate." Set Backlight to 100. IF THAT DIDN'T WORK The HDMI cable or port may not support the bandwidth. Ensure you're using a High-Speed HDMI cable (often labeled with "HDMI" on the cable). Plug into HDMI port 1 on the TV. HEADS UP This model does not have high peak brightness or local dimming. HDR will always look dim compared to more expensive TVs. That's a hardware limitation.

Question 2

how do i clean the screen on this thing without damaging it? the microfiber cloth just smears it.

Accepted Answer

DIAGNOSIS Oils from hands and dust create a film. Using a dry cloth just moves it around. FIX Power off and unplug the TV. Use distilled water only. Lightly dampen a clean, lint-free microfiber cloth. Wipe the screen in straight lines, no circles. Immediately dry with a second clean, dry microfiber cloth. IF THAT DIDN'T WORK For stubborn spots, use a 50/50 mix of distilled white vinegar and distilled water. Dampen the cloth, never spray directly on the screen. Wipe and dry immediately. HEADS UP Never use window cleaner, alcohol, ammonia, or abrasive cloths. They strip the anti-glare coating. This damage is permanent and looks like cloudy patches.

Question 3

there's a weird high-pitched buzzing sound coming from the back of the tv, even when it's off.

Accepted Answer

DIAGNOSIS Coil whine from the power supply board. A component is vibrating at high frequency. FIX Unplug the TV from the wall for 2 minutes. Plug it directly into the wall outlet, not a power strip or surge protector. A poor power source can excite the coils. IF THAT DIDN'T WORK The noise is coming from a specific inductor or transformer on the power board. It's not a safety hazard, but it is annoying. You can try to dampen it with a non-conductive epoxy, but this requires opening the TV and locating the exact component. HEADS UP If the buzzing changes pitch or is accompanied by a burning smell, unplug immediately. That indicates a failing capacitor, which is a fire risk.

Question 4

the wifi keeps disconnecting on my roku tv, have to reboot to get it back, my other devices are fine.

Accepted Answer

DIAGNOSIS Faulty WiFi adapter on the main board or interference from the TV's own components. FIX Change the WiFi channel on your router. Use channels 1, 6, or 11 on 2.4GHz. In the TV's network settings, set up a private DNS. Use 8.8.8.8 (Google). This often stabilizes the connection. IF THAT DIDN'T WORK Use an Ethernet adapter. Get the official Roku Ethernet adapter for your model and plug directly into your router. This bypasses the internal WiFi hardware entirely. HEADS UP Do not place routers or soundbars directly behind the TV. The metal shield and electronics cause severe signal blockage.

Question 5

i get this 'insufficient memory' error when trying to add a new channel, how do i clear space?

Accepted Answer

DIAGNOSIS The TV's internal storage is full of cached app data. Roku OS and channels share a small partition. FIX Go to Settings > System > Power > System restart. This clears temporary cache. Then go to Settings > System > Storage and check space. Remove any channels you don't use. IF THAT DIDN'T WORK You need to clear the cache for large streaming apps. Go to the Home screen. Highlight the problematic app, press the Star (*) button on the remote, and select "Remove channel." Then add it back fresh from the channel store. HEADS UP Never "force stop" apps from the settings menu. It can cause system instability. Always use the Remove/Re-add method.

Question 6

tv keeps restarting on its own every 10-15 minutes, stuck in a loop.

Accepted Answer

DIAGNOSIS Overheating main board or a corrupted software install. FIX Unplug the TV. Let it cool for one hour. Ensure all vents are clear of dust and the TV isn't in an enclosed cabinet. Plug it into a different wall outlet, not a power strip. Power it on. IF THAT DIDN'T WORK Perform a factory reset. Go to Settings > System > Advanced system settings > Factory reset. This wipes all data and reinstalls the OS. HEADS UP If it restarts during the factory reset, the eMMC storage chip on the main board is failing. That's a board-level repair.

Question 7

the roku remote just stopped working, no lights when i press buttons, fresh batteries didn't fix it.

Accepted Answer

DIAGNOSIS The remote's IR/Bluetooth radio died or it lost pairing with the TV. FIX First, re-pair it. Unplug the TV for 30 seconds. Plug it back in. Immediately point the remote at the TV and hold the pairing button (in the battery compartment) for 5 seconds. Wait for the pairing screen. IF THAT DIDN'T WORK The remote is likely dead. Use the Roku mobile app as a temporary remote. Order an official Roku Voice Remote replacement. Third-party remotes often have pairing issues. HEADS UP Check the battery contacts inside the remote. They can get compressed and not make contact. Bend them up slightly with a small tool.

Question 8

my roku tv screen is just black but i can hear the sound from the show playing, what's going on?

Accepted Answer

DIAGNOSIS The backlight array has failed. It's a common hardware fault on these LED panels. FIX Unplug the TV. Press and hold the physical power button on the TV itself (not the remote) for 20 seconds. Plug it back in and power on. If the screen is still dark, the backlight LED strips need replacement. IF THAT DIDN'T WORK It could be a failed T-Con board. That's the small circuit board connected to the panel. It controls the image signal. Requires disassembly to check. HEADS UP Backlight repair means removing the entire LCD panel. One crack and the TV is totaled. This is a pro job.

Roku TV 43 inch Select Series 4K Smart TV

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