Cài đặt màn hình kép cho game: Hướng dẫn tối ưu cho năm 2025

When you try to cast your iPhone screen to a TV or computer but see the message “Screen Mirroring Output Not Found,” it can be frustrating. Many users report that the screen mirroring button doesn’t appear in Control Center or that their iPhone says “No Device Found.” This is a common iPhone screen mirroring output issue — usually related to network connection, device compatibility, or iOS version changes.

Before troubleshooting, let’s clarify what AirPlay is: it’s Apple’s wireless display technology that allows you to mirror your iPhone screen to a TV or Mac to share videos, photos, or presentations. However, if you’re using an iPhone 16 or older model, system setting changes might cause your iPhone to fail in finding available devices for mirroring.

This article will walk you through all the possible causes and fixes — whether you’re trying to connect wirelessly via Wi-Fi or mirror your iPad to a computer — and introduce DeskIn, the ultimate alternative tool that helps you complete screen mirroring smoothly.

Common Reasons Why iPhone Screen Mirroring Output Can’t Be Found

When mirroring your iPhone screen to a TV or Mac, if you see messages like “Unable to connect” or “No device found,” it usually means AirPlay or the network environment has encountered a problem. Common reasons include a missing mirroring button in Control Center, unsupported devices, or AirPlay connection issues with your TV.

Some users also notice lagging or the “spinning” issue when mirroring to a Mac, or even messages like “Mac screen mirroring output not found.” These often relate to firewall settings, Wi-Fi interference, or outdated iOS versions. If AirPlay can’t find your device or the connection keeps failing, keep reading — we’ll cover each cause and its solution in detail.

1. No Screen Mirroring Button in Control Center

If the screen mirroring button doesn’t appear in Control Center, the feature may not be enabled. Go to Settings > Control Center > Customize Controls and manually add “Screen Mirroring.” This solves the issue of iPhone screen mirroring settings not showing up.

For more details on controlling your Mac, see our guide:
How to Control a Mac Remotely with an iPhone – Full Step-by-Step Tutorial!

2. No Available Devices Found

If AirPlay can’t detect your TV or other devices, it’s often because they aren’t on the same Wi-Fi network or AirPlay isn’t enabled on the target device. Ensure your TV supports AirPlay and that your iPhone, TV, Mac, or Apple TV are all connected to the same Wi-Fi network to complete mirroring successfully.

Device Does Not Support AirPlay

If your iPhone can’t find a screen mirroring output, it could be due to device incompatibility. Below are common cases and recommendations:

• iPhone 15 / 14 / 13 Series: Supports AirPlay 2, compatible with most smart TVs (Samsung, LG, Sony, etc.).

• iPhone 12 / 11 / XS / XR Series: Requires iOS 16 or above and must be connected to the same Wi-Fi network; otherwise, devices may not appear.

• iPhone 8 / 7 / 6 Series: Some newer TVs use protocols unsupported by older iPhones. Use a Lightning-to-HDMI cable or a third-party app like DeskIn.

• Recommended Smart TV Brands: Samsung, LG, Sony, Panasonic, and Philips support AirPlay 2. Some lower-end models require manually enabling “AirPlay” or “Screen Mirroring.”

If you’re using an older iPhone or a non-AirPlay TV, switch to DeskIn — it allows cross-platform screen casting without being on the same network and with lower latency.

4. Outdated iOS or Device Malfunction

If your iPhone 16 can’t find a mirroring output, the issue might be an outdated iOS or a device error. Go to Settings > General > Software Update to check for updates. If the issue persists after updating, restart your iPhone or reset network settings to rule out system malfunctions.

5. Network Interference or Firewall Blocking

If AirPlay fails to connect, your router, firewall, or antivirus software might be blocking the connection. Ensure both devices are on the same Wi-Fi network, then temporarily disable firewall or security software and try again.

If problems persist, switch to DeskIn, a remote collaboration tool that bypasses network restrictions and mirrors your iPhone screen to a Mac or TV — stably and smoothly, without lag or disconnection.

How to Fix the “iPhone Screen Mirroring Output Not Found” Issue

If your iPhone can’t find a mirroring output or keeps failing to connect, don’t panic — this usually isn’t a hardware issue. Follow these troubleshooting steps: restart both devices, verify they’re on the same Wi-Fi, re-add “Screen Mirroring” in Control Center, enable AirPlay, update iOS, and check firewall permissions.

If your iPhone or iPad shows no signal even when connected via HDMI, use DeskIn — a wireless projection tool that easily mirrors your iPhone to a computer or iPad.

1. Restart Devices

When you encounter the “Screen Mirroring Output Not Found” message, the simplest and most effective first step is to restart your iPhone and your TV, Mac, or projector. Rebooting clears temporary system errors, refreshes Wi-Fi and AirPlay connections, and solves most display issues. Then test screen mirroring again.

2. Ensure Devices Are on the Same Wi-Fi

If AirPlay can’t detect your TV or compatible display, ensure your iPhone and receiving device are connected to the same Wi-Fi network. AirPlay only works over a shared local network. Even if one device is on 5GHz and the other on 2.4GHz, they might fail to connect. Try reconnecting or resetting your router.

3. Re-add Screen Mirroring Option in Control Center

After certain iOS updates, users may notice the screen mirroring button disappears. Go to Settings > Control Center > Customize Controls, then re-add “Screen Mirroring.” This restores the quick-cast shortcut, allowing you to mirror your iPhone screen to a Mac, iPad, or TV instantly.

4. Enable AirPlay on the Receiving Device

Knowing what AirPlay is helps: it’s Apple’s wireless display protocol that sends your iPhone screen to a TV or Apple TV. If AirPlay isn’t enabled on the receiving end, your iPhone won’t detect it. Open your TV or Apple TV settings to enable AirPlay and ensure both devices share the same network.

5. Update iOS

If you’re using an older iOS version, check for updates. Outdated systems may cause “iPhone 16 Screen Mirroring Output Not Found” or unstable connections. Go to Settings > General > Software Update, then install the latest version to fix compatibility and improve AirPlay performance.

6. Check Firewall Settings

If AirPlay still can’t connect, a firewall or security program might be blocking communication. Temporarily disable your computer or router’s firewall for testing, or add AirPlay as an allowed app. Make sure ports TCP 7000–7100 are open so your iPhone can detect the receiving device.

Still Can’t Fix It? Try the Ultimate Solution: DeskIn

If none of the above methods work and you still can’t mirror your iPhone screen to your TV or computer, it’s time for a more stable solution — DeskIn.

Often called the best iPhone remote access tool, DeskIn easily mirrors your iPhone screen to MacBook, Windows PC, or other devices — without depending on AirPlay or specific network conditions. It delivers Apple TV–level image quality with ultra-low latency, perfect for meetings, gaming, or multi-screen workflows.

DeskIn Key Features:

• Ultra HD Quality: Supports up to 4K 60FPS and 2K 144FPS for crisp, fluid visuals.

• Ultra-Low Latency: Less than 40ms, enabling real-time interaction without lag.

• Cross-Platform Support: Works on Windows, macOS, iOS, Android, and even the web.

• Full Mobile Control: Lets you both mirror your phone to your computer and remotely control your PC from your phone.

• Feature-Rich Free Plan: Includes screen projection, voice chat, and file transfer at no cost.

• Fast and Stable Connection: 200+ global acceleration nodes automatically select the best route for uninterrupted performance.

Whether you’re remotely operating a Mac or sharing screens across devices, DeskIn provides smooth, wireless transmission — the most flexible and efficient AirPlay alternative available today.

How to Use DeskIn for iPhone Screen Mirroring

To mirror your iPhone to a Windows PC, MacBook, iPad, or Android device, there’s no need to rely on AirPlay. DeskIn lets you complete the connection quickly across platforms.

Steps:

1. Download & Log In: Install DeskIn on both your iPhone and computer (e.g., MacBook). Sign up and log in.
   
   

   

2. Connect & Mirror: Open DeskIn on your Mac, click “Mirror / Extend Screen,” then scan the QR code using your iPhone.
   

   

3. Start Mirroring: Tap “Start Projection” to instantly display your iPhone screen on your computer.
   

   

You can also check out these related guides:

• Wirelessly Share Files Between iPhone and Windows — No Extra Apps Needed

• How to Mirror iPhone to iPad: The Complete Screen Output Guide

Common Questions About Apple Screen Mirroring

1. Why can’t my iPhone mirror its screen?

Common reasons include unstable Wi-Fi, unsupported devices, or blocked connections by firewalls. If your iPhone can’t find any mirroring output, restart both devices and ensure they’re on the same network. If that fails, use DeskIn, which supports wireless mirroring to Mac, PC, iPad, and Android.

2. Where is the iPhone screen mirroring option?

Open Control Center and tap Screen Mirroring (or “Screen Cast” on some iOS versions). If it’s missing, go to Settings > Control Center and add it manually. This function works with Apple TV or AirPlay-enabled smart TVs.

3. Why can’t AirPlay connect to my TV?

If AirPlay shows “No Device Found,” ensure your TV and iPhone share the same Wi-Fi and that your software is up to date.

4. How can I mirror my iPhone to a TV?

You can use AirPlay, an HDMI adapter, or third-party apps. If your iPhone-to-HDMI connection doesn’t respond, try using an official Lightning adapter. For wireless projection to computers or tablets, DeskIn lets you mirror iPhone → PC → iPad easily — without cables.

Conclusion: Fix iPhone Screen Mirroring Output Issues for a Smoother Casting Experience

When you encounter issues like “iPhone Screen Mirroring Output Not Found,” “AirPlay Connection Failed,” or “Unable to Connect,” most can be solved by restarting devices, checking the Wi-Fi network, and updating iOS.

If none of these work, your device may be incompatible or limited by AirPlay restrictions. In that case, try DeskIn, which makes iPhone-to-computer projection effortless. DeskIn not only supports cross-platform connections with low latency but also works stably even without an internet connection — making it a more flexible and seamless alternative to AirPlay.

Download DeskIn now and experience smoother, more reliable iPhone screen mirroring!

In today’s business environment, many small startup teams face similar communication challenges. A team composed of hardware engineers, business developers, and operations managers often struggles with the inefficiency of endless email threads, wasting time digging through cluttered inboxes trying to find “that one file someone sent ages ago.” They urgently need a unified team app that integrates different work styles and ends the chaos once and for all.

With that in mind, this article explores how to choose the right collaboration tool for cross-functional teams. We’ll first explain the core value of collaboration tools, then review six standout platforms in detail to help teams like yours find the most suitable solution and boost overall collaboration efficiency.

Further reading:

• 5 Remote Desktop Apps Tested: For Work, Gaming, and Streaming

• 5 Best Screen Mirroring Tools for iPhone, Android, TV & PC

What Is a Collaboration Platform and Why It Matters

A collaboration platform is an online workspace that allows team members to work together, communicate, and manage projects in one place. Its greatest strength lies in breaking down departmental and geographic barriers—everyone can co-edit the same document in real time, eliminating the chaos of exchanging multiple file versions. This not only ensures information accuracy and timeliness but also reduces communication costs and improves execution efficiency across the team.

• Real-time collaboration with unified versions: Team members can co-edit a document and view version histories anytime. For instance, when a marketing team drafts a campaign proposal, everyone can edit and comment simultaneously, while the system auto-saves every version—no more “final-version-v2” confusion.

• Improved communication efficiency: Discussions can happen directly in the document or task card, keeping all context and files together. For example, when an engineer reports a bug in the project management tool, the product manager and designer can reply and attach fixes right within the thread—no more switching between chat apps and email.

• Visualized progress and clear accountability: Tools like Kanban boards and Gantt charts make each task’s owner and progress status visible at a glance. Project managers can quickly see which tasks are “in progress,” “completed,” or “blocked.”

• Centralized knowledge and file management: All important documents and meeting notes are stored in the cloud, easy for new or existing members to access anytime. For example, a new hire can instantly find past project reports or SOPs without asking around—shortening their onboarding time.

Who Should Use a Collaboration Platform

After understanding its benefits, the next step is to examine your team’s needs. Not every team requires the same tool. So, who are collaboration platforms best suited for?

• Remote or distributed teams: Members spread across different cities or countries can use real-time chat, video meetings, and shared cloud drives to stay synchronized and ensure smooth information flow.

• Project-oriented teams: Teams needing clear task assignments, progress tracking, and centralized file management—for example, software developers using Kanban boards, or marketing teams executing large-scale campaigns.

• Creative and design teams: Those who frequently review and provide feedback on design drafts or scripts can annotate visually and manage versions easily—avoiding confusion over which file is latest.

• Cross-department teams: When product development involves input from tech, business, and marketing departments, shared discussions and co-editing streamline communication and reduce meeting time.

6 Best Collaboration Platforms Worth Trying

There are countless collaboration tools on the market, but not all fit the pace of real-world teamwork. To help you avoid decision fatigue, we’ve curated six reliable, integration-friendly, and productivity-boosting tools that can truly empower your workflow. Let’s explore which ones can become your next workplace essential.

1. DeskIn (Top Recommendation)

Among online collaboration solutions, DeskIn stands out with its stable and smooth remote desktop technology that forms a solid foundation for team collaboration. It not only lets members securely access office computers anytime, anywhere, but also elevates remote access into a full collaborative workspace—making teamwork seamless no matter where members are.
📥 Want to try it out? DeskIn offers a free version with enterprise-grade encryption—safe and easy to use!

DeskIn Highlights:

• Rich collaboration features: Beyond remote access, DeskIn offers extended screen, screen mirroring, voice chat, on-screen annotation, and shared clipboard for fast, interactive teamwork.

• Cross-system file transfer: Transfer unlimited file sizes, types, and quantities between systems at speeds up to 12MB/s.

• Stable, high-quality connection: With 200+ global nodes, DeskIn ensures smooth, reliable connections and ultra-low downtime—even for long working sessions.

• Strong compatibility: Seamless remote access across Windows, macOS, iOS, and Android.

• 4K Ultra HD & Low Latency: Supports up to 4K 60FPS image quality with latency under 40ms.

2. Google Sites

Google Sites is a wiki-based web-building system designed for teamwork. Members can easily share and access key information in one place—no coding required. Its drag-and-drop interface, deep integration with Google Workspace (Drive, Calendar, etc.), and flexible permission settings make it ideal for creating internal project hubs, team sites, or even public-facing pages.

3. Google Drive (Cloud Collaboration Platform)

Google Drive is the cornerstone of team file storage and collaboration. Members can co-edit documents, spreadsheets, and slides in real time, with all changes automatically saved. Version control is built in, and access permissions can be precisely set for both internal and external sharing. From cross-department content creation to campaign planning or education materials, Google Drive keeps collaboration streamlined and organized.

4. Lark

Lark (Feishu) is an all-in-one intelligent communication platform that combines instant messaging, video meetings, cloud documents, and task management in one place. It enables teams to handle communication, document editing, and task tracking within a single app—ideal for remote or cross-department teams seeking faster information flow and integrated workflows.

5. Trello

Trello is an intuitive visual project management tool based on “boards, lists, and cards.” It helps teams easily track progress, assign tasks, and collaborate visually. Its simple drag-and-drop system makes work status transparent and supports real-time updates and comments. Perfect for project teams, remote workers, and workflow management (e.g., CRM, event planning).

6. Figma

Figma is a cloud-based UI/UX design tool centered on real-time collaboration. Designers, product managers, and developers can co-edit the same design file simultaneously. This eliminates back-and-forth file sharing and accelerates design-to-delivery efficiency. With its intuitive interface and powerful prototyping features, Figma is ideal for product development and visual collaboration in remote teams.

Conclusion

Ultimately, the true value of a collaboration platform lies in centralizing and visualizing team workflows. Real-time co-editing drastically reduces communication costs and version chaos. Whether dealing with documents, design files, or project tasks, the tools above allow real-time sync and collaboration.

When choosing a platform, focus on your team’s primary workflows and pain points—that’s the key to selecting the most suitable solution and unlocking your team’s productivity.

📥 Click here to try DeskIn—our top recommended collaboration platform.

Common Q&A About Collaboration Platforms

Which open-source collaboration platforms are worth trying?

Redmine and Taiga are two strong candidates. Redmine is highly flexible and customizable—great for development teams—while Taiga is designed for agile workflows with a clean and intuitive interface.

Which collaboration software is the best?

There’s no universal “best” software—the key is matching your team’s needs. For teams requiring extensive remote operations and real-time collaboration, a stable, feature-rich, cross-platform tool like DeskIn is an excellent choice.

Is there a secure, private online collaboration tool like Excel?

Yes. Proton Drive’s document tools use end-to-end encryption to ensure that only you and your collaborators can access your data, while still supporting real-time co-editing—balancing privacy and teamwork perfectly.

Have you ever felt tired of working on documents or giving presentations using your phone’s small screen? Projecting your Android screen to your computer can dramatically boost your efficiency. Among all the available tools, Scrcpy, an open-source project, stands out for its unique no mobile app installation required setup and smooth performance — making it a top choice for tech enthusiasts.

In this review, we’ll take an in-depth look at Scrcpy’s strengths and weaknesses, guide you through its setup and usage, and answer common questions to help you achieve the best Android-to-PC mirroring experience possible.

Further Reading

• Best Android Screen Mirroring Tools: Simple, Free, and Lag-Free

• How to Share Your Android Screen to a TV, PC, or Another Phone — Complete Guide

What Is Scrcpy?

Scrcpy is a free, open-source utility that allows you to control your Android device directly from your computer — either via USB or wirelessly. Its biggest advantage? You don’t need to install any app on your phone. Simply enable USB debugging, and Scrcpy delivers low-latency, high-quality screen mirroring for both productivity and entertainment.

What Makes Scrcpy Different?

Now that you have a basic understanding of Scrcpy, you might wonder: What makes it so special compared to other tools? Let’s break down three major reasons why Scrcpy stands out among other remote mirroring software — and why it’s a favorite among developers and advanced users.

Free and Open Source

Scrcpy’s core advantage is its free and open-source nature. This means you can use every feature at no cost — and even access the complete source code. Simply connect your phone to your computer with a USB cable, no rooting or extra hardware required, and enjoy ultra-low-latency screen mirroring. Its clean, efficient design makes it a perfect tool for Android developers and testers.

Strong Compatibility

Beyond being free, Scrcpy is also highly compatible. Whether you’re on Windows, macOS, or Linux, Scrcpy works flawlessly across all platforms. This cross-platform support means almost anyone can use it without technical barriers or mobile installations — just plug in and start mirroring instantly.

Smooth Mirroring Performance

Performance is where Scrcpy really shines. It focuses on high-efficiency screen mirroring, allowing your Android display to be projected to your PC in real time. With optimized image transmission technology, Scrcpy minimizes latency for an almost-synchronous, ultra-smooth user experience — ideal for fast-paced work or responsive interaction.

How to Use Scrcpy

After learning what makes Scrcpy powerful, let’s walk through the steps for downloading, installing, and using it — so you can start mirroring in minutes.

Step 1: Download and Install

Go to the official Scrcpy GitHub repository and download the latest version. Choose the package that matches your OS (e.g., Windows users usually download scrcpy-win64-vX.X.zip). Then extract the ZIP file to your chosen folder.

Step 2: Prepare Your Device

Enable Developer Options on your Android phone. Go to Settings > About phone, and tap Build number repeatedly until Developer Mode is activated. Then go to Settings > Developer options and turn on USB Debugging and USB Debugging (Security Settings). After that, connect your phone to your computer using a USB cable.

Step 3: Run and Connect

Open the folder where you extracted Scrcpy and double-click scrcpy.exe. If everything is configured properly, your Android screen will appear in a window on your computer — and you’ll be able to control it using your mouse and keyboard.

Scrcpy — Pros and Cons

While Scrcpy excels in Android screen mirroring, it does have a few noticeable limitations as a free, open-source tool — most notably, it does not support iOS devices such as iPhones or iPads.

Pros:

• Completely free and open source — no hidden fees

• Cross-platform support (Windows, macOS, Linux)

• Works without installing any mobile app

• Low latency, high-quality mirroring

• Ideal for Android development and debugging

Cons:

• Cannot mirror PC screen to TVs or external monitors

• Does not support iOS device mirroring (iPhone, iPad)

• Lacks advanced commercial features (multi-device, audio streaming, etc.)

• Requires enabling USB debugging — some technical skill needed

• No official graphical interface (GUI); relies on command-line use

Recommended Remote Access Tool for iOS Users — DeskIn

Because Scrcpy has certain limitations — especially for iOS users — we looked for a more complete alternative. After extensive testing, DeskIn stands out as a more powerful and well-rounded remote control software that perfectly fills those gaps.

DeskIn is an exceptional cross-platform remote access and collaboration tool that breaks OS boundaries. It supports seamless connections between Windows, macOS, iOS, and Android devices. Whether you want to mirror your iPad to a computer or work remotely between multiple devices, DeskIn handles it effortlessly.

Even better, it offers rich collaboration and screen management tools — including cross-platform file transfer, extended and mirrored displays, voice calls, whiteboard annotations, and shared clipboard — dramatically improving productivity and convenience in remote work.

Setup is simple:

1. Download and install DeskIn on all devices you want to connect.

2. Register an account and sign in on each device.

📥 Want to try it out? DeskIn offers a free version with enterprise-grade encryption — secure, smooth, and worry-free!

DeskIn’s Key Advantages at a Glance:

• Supports iOS Devices: Fully compatible with Windows, macOS, Android, and iOS — easily mirror your iPhone or iPad to a computer for free.

• 4K Ultra HD & Low Latency: Supports up to 4K 60FPS quality with latency under 40ms.

• Stable, High-Quality Connections: 200+ global relay nodes ensure high success rates, no session time limits, and no disconnections.

• Software Security: Both registration and new device logins require email verification to ensure account safety.

• Remote Connection Security: Uses AES-256 encryption, allows whitelist/blacklist setup and secure passwords, and supports privacy screen mode or remote screen locking to block suspicious access.

• Rich Free Features: In addition to core remote access, DeskIn includes Wake-on-LAN, remote printing, voice calls, whiteboard tools, and file transfer.

Common Scrcpy FAQs

What should I do if Scrcpy doesn’t respond?

Check if your USB cable connection is stable and confirm that USB debugging is enabled on your phone. Then restart scrcpy.exe on your PC. If it still doesn’t work, try replugging the cable or switching to another USB port.

How do I fix Scrcpy crashing or closing unexpectedly?

Crashes are usually related to display drivers or decoders. Try updating your GPU drivers to the latest version, or run Scrcpy from the command prompt to view detailed error messages for troubleshooting.

What is Scrcpy Plus?

Scrcpy Plus is a third-party enhanced version of Scrcpy that adds features like audio transmission and virtual camera support. It is not part of the official project but maintained by the open-source community.

How can I mirror iOS devices to a Windows PC?

If you want to mirror an iPhone or iPad to your computer, we highly recommend DeskIn — a professional remote control solution that delivers seamless cross-platform performance. It provides smooth, stable screen sharing along with collaboration tools, solving iOS users’ screen mirroring needs completely.

Conclusion

In conclusion, Scrcpy is undoubtedly an excellent tool for Android users — especially developers and power users. Its performance on both macOS and Windows is impressive, and its open-source, free nature is a huge plus. However, its lack of iOS support and limited advanced features are clear shortcomings.

If your goal is efficient Android management on Mac or PC, Scrcpy is a top pick. But if you need iOS compatibility or richer remote collaboration tools, DeskIn is the more complete and professional solution.

📥 Want to mirror your iPhone or iPad to your computer? Try DeskIn now — it’s fast, easy, and secure!