Quick wins for a faster PC:
Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →An HDMI error usually means your TV is not receiving or accepting a usable signal from the selected source. Check that the source is on and the TV is set to the HDMI input it uses, then reseat the cable and restart both devices. “HDMI error” is a symptom, not a diagnosis: the TV input, cable, source device, video format or protected-content connection can all be involved.
Start with the input, source and cable
- Check the source and TV input. Turn on the connected device, then select the HDMI input where it is plugged in. Even if a compatible device can switch inputs automatically, verify the TV’s selection yourself. For a “No signal” message or no picture or sound, start here. Philips support, TCL support and Sony support provide manufacturer troubleshooting guidance.
- Reseat both ends. Disconnect and firmly reconnect the HDMI cable at the TV and source. Check that it runs from the source’s HDMI output to the TV’s HDMI input. A loose connection or incorrect port can interrupt the signal. TCL and Sony include connection checks in their guidance.
- Restart the devices. Turn off the TV and source, unplug them, reconnect power and turn them back on. Timing varies by manufacturer and product: TCL’s general instructions specify unplugging both for 30–60 seconds and turning on the source before the TV; a Philips product manual recommends a 30-second unplug reset for its setup. Treat those as product-specific examples, not a universal rule.
Isolate the connection path
If the error remains, test another HDMI input on the TV. If a receiver, soundbar, switch, splitter, adapter or extension sits between the source and TV, temporarily remove it and connect the source directly to the TV. This helps determine whether the problem is associated with an intermediary or another part of the path; it does not by itself prove which component is faulty. Sony’s troubleshooting steps include trying another input and simplifying the connection.
As an Amazon Associate I earn from qualifying purchases.
When possible, test the source on another TV, or connect a different source to the same TV input. If several known-good sources fail on one input, the TV input becomes more suspect. If only one source fails, focus first on that device, its settings and its cable. These comparisons narrow the possibilities but are not a definitive hardware diagnosis.
Free tools Windows power users keep installed
One-click scans. No signup required.
Match the fix to the message
“No signal” or no picture or sound
Confirm the source is powered on, select its actual HDMI input on the TV, and check both cable connections. Then restart the devices and test another input or a direct connection. Those checks address the basic signal path before you assume the TV is broken. Sony’s support guidance covers no-picture and no-sound troubleshooting.
#1 Best Overall
- Superior Display, Swift Connectivity: Elevate your viewing experience to unparalleled clarity with 8K@60Hz, and enjoy smoother visuals and reduced lag with support for 4K@120Hz and 4K@60Hz.
- Quick and Seamless Video Transfer: With the latest HDMI technology, stream or transfer videos without interruptions, and witness the power of up to 48 Gbps in bandwidth, ensuring consistently clear content.
- Lasts Longer, Performs Stronger: This cable is designed to withstand up to 1,000 bends throughout its lifespan, meaning fewer replacements and continuous peace of mind.
- One Cable, Many Solutions: Whether you're connecting tablets, laptops, HDMI devices, projectors, or desktop screens, this cable effortlessly connects them all.
- What You Get: HDMI Cable (6 ft, 8K), welcome guide, 18-month warranty, and our friendly customer service.
“Resolution not supported”
This message points to a mismatch between the video format the source is sending and what the TV can accept or is configured to receive. Check both devices’ supported formats, then set the source to a compatible resolution and, where relevant, HDR setting. Philips gives a source set to 4K HDR while the TV is not configured to receive that format as an example; exact capabilities and menu controls depend on the models. Philips support explains this compatibility check.
HDCP-related error
HDCP is used to authenticate protected content across the connection. An HDCP-related message can therefore point to an authentication problem in the signal path, rather than identifying a single defective part. Try switching the TV to another source and back, restarting the TV and connected device, and reconnecting the cable. Philips lists authentication failure as a possible cause of an HDMI error and recommends reconnection steps. Philips support also recommends a certified cable in its HDCP troubleshooting, but a cable replacement is not guaranteed to solve the problem.
Rank #2
- 4K HDMI UHD Transmission, Stunning Audio & Visual for Home Theater & Gaming： Enhanced with gold-plated connectors for high-speed, interference-free signal transmission. Supports 4K*2K UHD resolution (3840×2160), delivering crystal-clear imagery and full HD stereo sound—perfect for immersive home theater movie nights, gaming marathons and big-screen TV viewing
- High-Speed Bandwidth, Instant Transmission for Real-Time Playback： Fully compliant with High-Speed HDMI cable 2.0 standard for max-speed data transfer. Blazing-fast transmission of audio, video and image files with zero buffering, ideal for 4K streaming, real-time gaming and seamless laptop-to-projector presentations. Plug-and-play design, no driver installation needed for effortless one-step connection
- HDMI 2.0 Standard Compliant, Universal Compatibility for All A/V Devices： Built to fully comply with official HDMI 2.0 standards after rigorous professional quality testing. Featuring broad backward compatibility with HDMI 1.4/1.3/1.2 generations, this cable effortlessly pairs with smart TVs, game consoles, Blu-ray players, projectors, laptops and set-top boxes. Enjoy stable plug-and-play connectivity across every piece of your home audio-visual gear.
- Premium Crafted Material, Ultra Durable for Daily Home Use & Frequent Use： Exclusive SR joint design at both ends to prevent joint cracking at the source. Rigorously lab-tested to withstand over 15,000 bends without performance loss, built to endure daily plug-and-unplug, messy entertainment area setups and regular home use—ensuring long-lasting durability against daily wear and tear hdmi cable
- 100% Component Inspected, Uncompromising Quality for Long-Term A/V Enjoyment： Every single component of the cable undergoes multiple rigorous lab tests for performance and sturdiness. Only flawlessly tested parts are selected for assembly, guaranteeing top-tier product performance and extended service life with strict quality control—reliable for years of home theater, gaming and everyday big-screen use hdmi
If an HDCP error persists while playing protected content, test the source directly on the TV without intermediary equipment. If the direct connection still fails, contact the TV or source-device manufacturer for model-specific help.
When to test another HDMI cable
If reseating the cable and simplifying the signal path do not help, try a known-working cable with a capability suited to the source, TV, video format and cable length. TCL recommends testing a different High Speed HDMI cable for unstable video; Philips recommends a certified cable in its HDCP troubleshooting. Those are troubleshooting suggestions, not evidence that every HDMI error is caused by the cable. TCL and Philips give their respective guidance.
Rank #3
- 【Crystal-Clear Visuals: Experience Unmatched 8K Clarity】 Elevate your home entertainment with our 8K HDMI cable 15ft . Supporting 48Gbps High Speed, indulge in seamless transitions between 8K@60Hz and 4K@120Hz resolutions for crystal-clear visuals. Experience the vibrancy of Dynamic HDR, immersive 3D visuals, and HDCP2.2 & 2.3 compliance for an unparalleled viewing experience
- 【Gaming Excellence: Elevate Your Gaming with Next-Level Performance】 Our enhanced 8K long HDMI cable amplifies gaming experiences. Featuring an advanced audio return channel (eARC), enjoy superior high-definition audio compared to standard 4K cables. Bid farewell to picture freezes and tears with Variable Refresh Rate (VRR) support, ensuring smoother gameplay. This 15 ft HDMI cable is your ultimate choice for exceptional gaming performance across all compatible devices
- 【Seamless Compatibility: Versatile Connections Across Devices】 Backward compatible from HDMI versions 2.1 to 1.1, our 8K HDMI 2.1 cable 15 ft seamlessly connects laptops, Blu-ray players, HDTVs, monitors, Series X/S, CX C9 B9, AMD, Nvidia RTX 3080/3090, and various HDMI output devices. Immerse yourself in the latest high-bitrate audio formats including DTS Master, DTS:X, Atoms, and enhanced Audio Return Channel (eARC) across various setups, from 4K/8K UHD TVs to projectors and A/V Receivers
- 【Durable Performance: Sleek & Durable Copper Build for Longevity】 Crafted with advanced copper wire technology, our HDMI 15ft cable ensures greater bandwidth and durability. Experience minimal signal attenuation, superior interference resistance, and increased carrying capacity compared to traditional wires. It's the ideal choice for pre-built HDMI 2.1 cables, ensuring long-term performance without future cable replacement costs during home upgrades
- 【Lifetime Support & Precision: Quality Assurance and Bidirectional Transmission】 At Highwings, quality and customer support are top priorities. Enjoy lifetime support with our 8K long HDMI cable 15 ft. Our customer service team is available within 13 hours to assist with any cable-related issues. Remember, our cables support bidirectional transmission and are designed for optimal performance, ensuring the perfect picture on your chosen display device
Before replacing one, check the specifications of both connected devices and the format you need to carry. The available guidance does not establish one universal cable choice for every setup.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.When to contact the manufacturer
Seek model-specific support if multiple known-good sources fail on the same TV input, or if the TV’s own menus and apps also show display problems. If the issue appears only with one source, investigate that device and its settings first. Menu names, supported formats and reset procedures vary by model, so use the manuals or support pages for your TV and source rather than assuming one brand’s instructions apply to another.
Quick Recap
Best Value
- IN THE BOX: HDMI cable (A Male to A Male) for connecting 2 HDMI-enabled devices; 3 feet long in Black
- DEVICE COMPATIBLE: Connects Blu-ray players, Fire TV, Apple TV, PS4, PS3, Xbox One, Xbox 360, and computers to TVs, displays, A/V receivers, and more
- SUPPORTS 4K VIDEO: Supports 4K video at 60 Hz, 2160p, 48-bit/px color depth, as well as bandwidth up to 18Gbps, Ethernet, 3D, and Audio Return Channel (ARC)
- EASY CONNECTION: Share an Internet connection among multiple devices (no need for a separate Ethernet cable)
- BACKWARDS COMPATIBLE: Works with earlier versions to allow for use with a wide range of HDMI-enabled devices
Rank #4
- 【HDMI 2.1 Certification】Only 1% of HDMI cables on the market have passed HDMI 2.1 certification. Scan with the QR code Scanner app for verification
- 【120Hz/144Hz Gaming Excellence】Elevate your gaming experience with smooth 4K@120Hz gameplay for PS5 and Xbox, and ultra-responsive 4K@144Hz for PC. Whether you’re pushing your console or PC to the limit, enjoy unparalleled performance across all platforms(Requires game to support 4K@120Hz)
- 【Exclusive "E-Braid" Technology】Experience unprecedented durability with our unique double-layer fishnet winding and nylon braiding techniques. Copper cores and ferrite magnetic beads ensure uninterrupted signals, eliminating black screens and flickering
- 【HDMI 2.1-48Gbps Bandwidth】Unleash the full potential of your devices with lightning-fast data transfer rates, ensuring seamless connectivity for all your high-definition needs
- 【Next-Level Resolution Support】Dive into the future with support for mind-blowing resolutions, including 10K 8K@60Hz, 12-bit; 5K@120Hz/90Hz, 12-bit; 4K@144Hz/120Hz, 12-bit; and 2K@240Hz/165Hz
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
