Screen mirroring on the Xiaomi 15 Ultra is meant to make sharing your screen quick and seamless, whether you are casting videos, photos, or presentations. When it does not work, the phone may fail to detect your TV or disconnect unexpectedly. In most cases, this issue is caused by network settings, compatibility limits, or simple configuration problems that are easy to fix.
Why Your Xiaomi 15 Ultra Screen Mirroring Is Not Working
- The phone and TV are connected to different Wi Fi networks.
- Screen mirroring or wireless display is disabled on the TV.
- Compatibility issues with certain smart TVs or streaming devices.
- Temporary system glitches affecting wireless connections.
- Outdated system software on the phone or the TV.
1. Make Sure Both Devices Are on the Same Wi Fi Network
Screen mirroring relies on both devices being connected to the same wireless network. If they are on different networks, your phone will not detect the TV at all.
Open Settings, and then tap Wi Fi.
Connect your Xiaomi 15 Ultra to the same network as your TV or streaming device.
2. Enable Wireless Display on the TV
Many TVs require screen mirroring or wireless display to be enabled manually. If this feature is turned off, your phone will keep searching without finding any devices.
Open the TV settings menu, and then find Screen Mirroring or Cast.
Turn the feature on, and leave the TV on the detection screen.
3. Turn Screen Cast On and Off on Your Phone
Refreshing the screen casting feature can clear temporary connection issues. This forces the phone to restart its device scan.
Swipe down from the top of the screen to open Quick Settings.
Tap Screen Cast to turn it off, and then tap it again to turn it back on.
4. Restart Both the Phone and the TV
A restart clears cached network data and refreshes wireless services. This is especially helpful if screen mirroring suddenly stopped working.
Turn off your Xiaomi 15 Ultra, and then turn it back on.
Restart your TV or streaming device, and wait for it to fully boot.
5. Check for System Updates
Older software versions can cause compatibility problems with newer TVs. Keeping both devices updated improves stability and connection reliability.
Open Settings, and then tap About phone.
Tap System update, and install any available updates.
6. Try a Compatible Casting Device
Some TVs do not fully support Xiaomi screen mirroring protocols. Using a compatible casting device can solve the issue instantly.
Connect a Chromecast or similar device to your TV, and power it on.
Use Screen Cast on your phone, and select the casting device from the list.
Screen mirroring issues on the Xiaomi 15 Ultra are usually easy to resolve once the correct settings are in place. After aligning networks, enabling wireless display, and refreshing the connection, screen casting should work smoothly again.
FAQs
Does Xiaomi screen mirroring work with all smart TVs?
No. Some TVs have limited support for Xiaomi casting protocols, which can prevent detection. Using a Chromecast often resolves this.
Why does screen mirroring disconnect after a few minutes?
This can happen due to weak Wi Fi signals or power saving features on the TV. A stable network connection helps prevent random disconnections.
Can mobile data be used for screen mirroring?
No. Screen mirroring requires a local Wi Fi network. Mobile data alone cannot be used to cast your screen.
