Netflix Black Screen When Screen Mirroring: How to Fix?

Screen mirroring Netflix to share the viewing experience from your smartphone or tablet to your TV can be extremely convenient. However, the technology does not always work seamlessly. One of the most common issues people face while screen mirroring Netflix on their TVs is running into the frustrating Netflix black screen.

A Netflix black screen simply refers to your TV only displaying a black screen when you try to cast or mirror Netflix from your phone/tablet, even though the app loads fine on your phone or tablet’s screen. The audio of the Netflix content might sometimes work, but there is no video, just an empty black screen on your TV.

Fixing Steps of Netflix Black Screen When Screen Sharing

This Netflix streaming black screen issue can stem from various causes depending on your setup and devices. You can apply several troubleshooting steps to resolve the Netflix black streaming issue on your Chromecast, Firestick, Roku device, or Smart TV. Here’s how to fix Netflix’s black screen when screen mirroring:

Internet Strength

Check Internet Connectivity Strength

Flaky or slow internet connections often prevent screen mirroring and casting from working properly. Start troubleshooting by checking the strength of your internet connection and on all the devices involved.

Run a speed test on your smartphone/tablet and the device your Netflix is being cast on, like your Smart TV or Firestick. If either device shows significantly slower than your broadband plan’s promised speeds, then that could be the reason. Try rebooting your router/modems and re-connecting the devices to the WiFi network in such a case.

The possibility of your ISP throttling connectivity due to excessive bandwidth usage should also be ruled out. Check for network congestion sources or any firmware that needs updating. Contact your ISP’s customer support about the slow speeds if all else fails.

Check Video Ports and HDMI Cables

HDMI PORT LG TV

Thoroughly inspect the physical ports and HDMI cables that connect your mobile device or streaming box to your television display. Issues with ports or cables can disrupt media transmission, leading to blank black screens. Examine all video output ports on your smartphone, tablet, Firestick, Roku, gaming console, or any device sending the Netflix video feed for dust, damage, or bent pins.

Similarly, check the HDMI input ports on your TV/monitor side receiving the HDMI cable. Connect streaming devices to an alternate HDMI input port as a test if possible. Also, swap out current HDMI cables with a spare one to check if that fixes screen mirroring problems.

Faulty wires unable to handle high resolutions can manifest as the Netflix app loading correctly but only displaying black screens. Finally, confirm all HDMI connectors are securely inserted at both ends and that no devices/wires obstruct ports, disrupting video signals through the cables and leading to darkened mirrored screens.

Update Device Apps and Software

Outdated apps and device system software often breed compatibility issues that might reflect in the form of Netflix screen mirroring errors.

Ensure you have installed the latest version update of the Netflix app from the Google Play Store or Apple App Store on your phone or tablet. Your Smart TV, streaming stick, Chromecast, or other receiver device should also have the latest Netflix version from their respective app stores.

Confirm that your mirroring device and the TV/display have installed the latest firmware version. Go to Settings > System > Advanced > System update on Android phones to check for pending updates. The Software update menu on Roku devices and the System update option on Samsung Smart TVs allow checking and installing updates.

Check Video Resolution Settings

video playback setting netflix

High video resolutions can sometimes overwhelm screen mirroring connectivity and result in dropped frames + the Netflix black screen problem on your TV.

While on your phone’s Netflix app, go to your Profile > App Settings > Cellular Data Usage and adjust the Download Quality for Wi-Fi/Mobile to a lower resolution, like Medium quality instead of High/Auto. Also, set Playback quality to Standard Definition (SD) instead of High Definition (HD).

Similarly access Netflix app settings on your Chromecast or Fire TV device, go to Account > Profile and Playback Settings, and adjust Netflix streaming resolution to Standard Definition instead of HD. Tweak these settings while trying to mirror Netflix a few times to check if it helps resolve the issue.

Restart Devices

Before trying more advanced troubleshooting, a simple device restart is worth attempting. Device memory issues, temporary software glitches, or background app interference could all be causing Netflix screen mirroring problems.

Start by force quitting and relaunching the Netflix mobile app on your casting device. Double-check other apps running in the background that may interfere and close background apps that take over streaming bandwidth or system resources.

Then reboot your streaming device receiver by unplugging the power cable of your Smart TV, Firestick/Roku stick, or casting device for 30 seconds before restarting them. Restart your WiFi router if the resets above do not help. Allow some time post restarts for caches to clear properly before retrying Netflix mirroring.

Check HDCP Errors

HDCP Error Netflix

HDCP or High-bandwidth Digital Content Protection errors can also contribute to the chopped Netflix streaming feed, resulting in black screens. HDCP encrypts data transfer from streaming devices to TV displays without compromising video/audio quality.

Check your TV/monitor and the Roku, Fire, Chromecast, or other streaming device to confirm they have HDCP version support. If your display is only HDCP 1.4 compliant while your streaming device uses HDCP 2.2, it will cause this Netflix cast black screen problem.

You must upgrade the non-compliant HDCP component to have the same version support across both transmitter and receiver devices involved in Netflix video streaming. Newer 4K HDR TVs usually have HDCP 2.2, which works with matching receiver devices.

Bypass VPN/Proxy Servers

Using VPN services to route Netflix video traffic or change regions often disrupts screen casting functionality, causing black screens to appear instead of mirrored Netflix content. Disable any VPN or proxy server connections active on either your phone/tablet or the receiving device before attempting to cast Netflix screens.

Some router-level VPNs may require temporarily disconnecting your WiFi and switching to mobile data. Also, reset your receiving device, like the Chromecast or Firestick, before pairing it again while the VPN/proxy is disabled. Netflix black screen issues typically resolve when VPN/proxies are inactive during screen mirroring sessions.

Check Chromecast Connection

If you use a Chromecast device to mirror Netflix from your phone or tablet to your TV, thoroughly inspect its connection. Power cycle your Chromecast stick and ensure it is correctly inserted into the HDMI port if applicable.

From the Google Home app, try manually disconnecting and re-adding your Chromecast to troubleshoot pairing issues. Toggle the ‘Enable video casting’ and ‘Match content frame rate’ settings under Ambient Mode off and on. Also, check if cast notifications display on the mobile app initiating screen mirroring – if not, remove the Chromecast device from the app and re-add it.

Ensure no VPNs or firewalls block communication between your streaming and receiver Chromecast device. If multiple Chromecasts in your home connect to the same WiFi network, assign them to separate frequencies to prevent signal interference.

Netflix App Cache Files & Clear Data

Clear Cache Netflix

Cached data and files stored by the Netflix app can also contribute to casting errors. On your Android/iOS device, go into App Settings and clear the cache, cookies, and site data within the Netflix app. You can also visit Device Settings > Apps > Netflix > Storage and tap ‘Clear Cache’ plus ‘Clear Data.’ Doing this deletes temporary streaming data and logs out of Netflix app accounts, forcing a fresh login.

After clearing Netflix app caches/data, force quit and relaunch the app before attempting to cast content again. Repeat the same process of clearing caches and storing app data on Smart TVs, streaming sticks, and other receiver devices for a clean slate linking between your phone and TV. Wiping these temporary Netflix application files often resolves glitches affecting screen mirroring functionality when a black screen appears despite properly connected hardware.

Uninstall/Reinstall Netflix App

Corrupt app data and files might sometimes creep in during Netflix app updates or if mirroring is abruptly discontinued while streaming. Start by clearing the Netflix app cache and data from the device Settings. Then uninstall and freshly download + reinstall the Netflix application on both sending and receiving devices involved.

Set both devices up from scratch post-reinstall by logging into the same Netflix account and ensuring all settings sync correctly. Now restart both sender and receiver devices before launching the newly installed Netflix apps. Retry pairing both devices and mirror Netflix onto your TV to check if this resolved screen casting issues.

Factory Reset Streaming Devices

Factory Reset of Chromecast

If all the above troubleshooting steps fail, the last resort is completely factory resetting your Netflix cast receiver equipment like Chromecast, Firestick, Roku, or Smart TVs. Backup vital data before reset.

Factory reset reverts these devices to original out-of-the-box settings, clearing any problematic app data, caches, or software issues that may affect screen mirroring performance. Post reset, reconnect your devices to the WiFi network before setting up Netflix from scratch.

Confirm Mobile/TV Netflix Accounts Match

An important aspect is ensuring the Netflix account logged into on your mobile app matches the account activated on your Smart TVs/Firestick. Logging into multiple accounts can confuse these devices, causing mirrored screens to display black and fail to cast properly.

Use one central unified Netflix account that can be easily accessed via the app and activated across all receiving devices, including Chromecast, gaming consoles, or streaming boxes connected to your TVs. Also, check the ‘Allow display over other apps’ permission enabled for the Netflix mobile app initiating the casts.

Summary

Troubleshooting the frustrating Netflix black screen appropriately when you screen mirror requires some trial and error investigating potential causes. Work your way through the above fixes as applicable to check connectivity issues, outdated apps/devices, streaming resolutions, HDCP mismatch, VPN network interferences, and account conflicts. Reinstalling Netflix apps, factory resetting streaming devices, and contacting technical support may finally help resolve those irritating empty black screens reflecting failed Netflix screen mirroring attempts onto your TV displays. Stay persistent until you can pinpoint the reason behind failed video casting to enjoy uninterrupted Netflix binging experiences wirelessly from mobile devices onto your Television screens.

About: Pankaj Konwar

Pankaj Konwar is the founder and writer of 5GMP. He writes in-depth buying guides, tips for troubleshooting common TV problems, and reviews of the latest TV models.

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