Question 1

the remote for my u7k is super laggy or doesn't work unless i'm pointing it right at the tv.

Accepted Answer

DIAGNOSIS: The remote uses Bluetooth for voice control and some functions, but basic navigation still relies on an infrared (IR) signal. Something is blocking the IR receiver on the TV, or the remote's batteries are weak. FIX: 1) Replace the batteries in the remote with fresh, name-brand ones. The cheap ones that come with the TV don't last. 2) Check the IR receiver on the TV. It's a small, dark plastic window, usually on the bottom center of the bezel. Make sure it's not covered by a soundbar, a figurine, or even dust. Wipe it clean with a dry cloth. 3) Move any bright lights, like a floor lamp, away from the front of the TV. Incandescent bulbs can flood the room with infrared light and drown out the remote's signal. IF THAT DIDN'T WORK: The remote itself might be faulty. Try using the Hisense Remote Now app on your smartphone as a test. If that works perfectly, the physical remote is the problem. Contact Hisense for a replacement remote under warranty. HEADS UP: If you're using a universal remote or a soundbar remote that controls the TV via HDMI-CEC, those can sometimes send conflicting signals that make the TV's own remote seem unresponsive. Try turning off CEC (called 'HDMI Control' or 'AnyNet+' in settings) temporarily to test.

Question 2

my ps5 says it's not getting a 4k 120hz signal from the hisense u7k, even though the hdmi is set to enhanced.

Accepted Answer

DIAGNOSIS: You're likely plugged into the wrong HDMI port, or your HDMI cable isn't high-bandwidth enough. The U7K has four HDMI ports, but only two (HDMI 3 and 4) are full-bandwidth HDMI 2.1 ports that support 4K at 120Hz. FIX: 1) Move your PS5 cable to HDMI port 3 or 4 on the TV. 2) On the TV, go to Settings > Inputs > HDMI Signal Format. Select the port you're using (HDMI 3 or 4) and set it to 'Enhanced (4K 120Hz)'. 3) Ensure you're using the HDMI cable that came with your PS5, or a certified Ultra High Speed HDMI cable. Older 'High Speed' cables won't cut it. IF THAT DIDN'T WORK: On your PS5, go to Settings > Screen and Video > Video Output. Check 'Enable 120Hz Output' is on. Also, try manually setting the 4K Video Transfer Rate to '-1' or '-2'. Sometimes the automatic setting gets confused with certain TVs. HEADS UP: When you enable 4K 120Hz, the TV might disable some other picture features like certain local dimming zones or color enhancements. This is normal. The processor can't do everything at once at that high bandwidth.

Question 3

the motion on my hisense looks weird and jittery during sports, even with motion smoothing turned on.

Accepted Answer

DIAGNOSIS: You're hitting a known quirk of the U7K's processing. The 'Motion Clearness' or 'Motion Rate' settings can sometimes create inconsistent judder, especially with 24fps film content or fast camera pans in sports. FIX: Go to Settings > Picture > Advanced Settings > Motion Settings. First, try setting 'Motion Clearness' to 'Off'. See if the natural motion looks better. If it's still jittery, try the 'Film' or 'Sports' preset mode—these often have the motion tuning dialed in better than the custom settings. If you want to fine-tune, set 'Judder Reduction' to 2 or 3 and 'Blur Reduction' to 1. This is usually the sweet spot for smoothing without the 'soap opera effect'. IF THAT DIDN'T WORK: The issue might be your source. Check if the app or device you're using (like a cable box or streaming stick) is outputting a weird refresh rate. On the TV, press the 'Settings' button on the remote while watching and go to 'Picture' > 'Advanced Settings' to see the incoming signal resolution and Hz. For smooth sports, you want it to be 1080p or 4k at 60Hz. HEADS UP: No setting will make low-bitrate streaming (like a poor YouTube TV connection) look perfect. The jitter might be in the source signal itself, which the TV can't fully fix.

Question 4

how do i clean the screen on this hisense mini-led tv? the microfiber cloth just smears it.

Accepted Answer

DIAGNOSIS: Smearing happens because you're rubbing oils and dust around. The anti-glare coating on these screens is delicate and can be damaged by cleaners or rough cloths. FIX: 1) Power off the TV so you can see streaks. 2) Use a dry, clean, high-quality microfiber cloth designed for glasses or screens. 3) Gently wipe in one direction, preferably straight across, using very light pressure. Lift the cloth after each pass. For stubborn spots, lightly dampen a corner of the cloth with distilled water—just a few drops—and use that spot to gently clean the area, then immediately dry it with the dry part of the cloth. IF THAT DIDN'T WORK: If you've already used a chemical cleaner and there's a hazy residue, you may have damaged the coating. Unfortunately, there's no safe way to 'strip' the damaged coating. You'll have to live with it or, if it's severe, pursue a warranty claim for screen damage. HEADS UP: Never, ever spray anything directly onto the screen. The liquid can seep into the edges and damage the Mini-LED backlight array or the electronics behind the panel. Always spray onto the cloth, and even then, only use water or a screen cleaner specifically labeled as safe for coated displays.

Question 5

there's a weird high-pitched buzzing or whining sound coming from the back of my u7k, only when the screen is bright.

Accepted Answer

DIAGNOSIS: That's coil whine. It's coming from the power supply board or the local dimming controller circuits. When the TV demands more power for a very bright HDR scene, the electrical components vibrate at a frequency you can hear. FIX: First, check if it's coming from an external source. Unplug any soundbars or devices connected via HDMI. Play the same bright content (like a snow scene or the sun) and listen. If it's definitely the TV, go to Settings > Picture > Advanced Settings > Local Dimming. Try changing the setting from 'High' to 'Standard' or 'Off'. This reduces the instantaneous power demand on the circuits and can quiet the whine significantly. IF THAT DIDN'T WORK: If the noise is still unacceptable, it points to a component on the power board that's slightly out of spec. The sound itself isn't a sign of imminent failure, but it is a defect. Contact Hisense support. They are often aware of specific production runs with this issue and may offer a repair or replacement under warranty. HEADS UP: Don't try to fix coil whine by stuffing foam inside the TV. You'll block critical ventilation and cause the TV to overheat, which will lead to a very real and costly failure.

Question 6

my hisense tv keeps disconnecting from wifi every few hours, have to reboot to get it back.

Accepted Answer

DIAGNOSIS: This is usually a handshake issue between the TV's network chip and your router, especially on congested 2.4GHz networks. The TV's software can get stuck trying to maintain the connection. FIX: First, forget your Wi-Fi network on the TV. Go to Settings > Network & Internet > Your network > 'Forget'. Restart your router. Once it's fully back online, reconnect the TV to the network, making sure to enter the password correctly. If you have a dual-band router, connect the TV to the 5GHz band (usually named something like "YourNetwork-5G") for a cleaner, less crowded signal. IF THAT DIDN'T WORK: The next culprit is often an IP address conflict. In your TV's network settings, switch the IP settings from "DHCP" to "Static" and manually assign an IP address outside your router's normal DHCP range (e.g., if your router gives out addresses like 192.168.1.10 to .100, set the TV to 192.168.1.200). HEADS UP: If you're still having drops, try moving any wireless speakers, baby monitors, or microwaves farther from the TV. They can interfere with the 2.4GHz signal the TV might be using.

Question 7

the google tv home screen on my 65u7k is super laggy and unresponsive, takes forever to load apps.

Accepted Answer

DIAGNOSIS: The built-in storage is likely nearly full from cached app data, which chokes the processor. This is a common smart TV issue, not unique to Hisense, but it really bogs down the interface. FIX: First, force stop and clear the cache for the Google TV Home app. Go to Settings > Apps > See all apps > Google TV Home. Select 'Force stop', then 'Clear cache'. Do NOT select 'Clear data' or you'll lose your logins. Next, go back and do the same for any apps you use heavily, like Netflix or Disney+. Finally, power cycle the TV: hold the power button on the remote and select 'Restart'. IF THAT DIDN'T WORK: If it's still sluggish, a factory reset is the nuclear option. Go to Settings > System > About > Reset. This will wipe all your apps and logins, setting the TV back to out-of-box state, so it should run fast again. HEADS UP: After the reset, be selective about which apps you reinstall. Every app running in the background eats RAM and storage. Stick to the few you actually use daily.

Question 8

my hisense u7k won't turn on at all, just a black screen but i can hear a click from the power supply when i press the button.

Accepted Answer

DIAGNOSIS: The TV is getting power and the main board is trying to boot, but the backlight system isn't firing up. On a Mini-LED set like the U7K, this is often a power board issue, not the actual LEDs. FIX: Unplug the TV from the wall for a full two minutes. This lets the internal capacitors drain completely. While it's unplugged, press and hold the physical power button on the TV (if it has one) or the joystick control on the back for 30 seconds. Plug it back in and try turning it on normally with the remote. IF THAT DIDN'T WORK: The temporary 'soft reset' didn't clear it, so you likely have a component on the power board that's failed under load. This isn't a user-serviceable fix; you'll need to contact Hisense support for warranty repair or a technician to replace the power supply board. HEADS UP: Don't be tempted to open the TV yourself looking for a blown fuse. These TVs hold a dangerous charge even when unplugged, and you could easily damage the delicate Mini-LED array.

Hisense 65 inch 65U7K Mini-LED ULED 4K Smart TV

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