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Overview

Scrcpy for Android allows you to mirror and control another Android device from your phone. This guide covers the different connection methods available.

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Prerequisites

Before connecting, ensure:
  • Wireless debugging is enabled on the target device
  • ADB is configured on the target device
  • Both devices are on the same network (for local connections)
Run adb tcpip 5555 on your target device to reset the ADB port to the default port.

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Connection Methods

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Local Network Connection

The most common way to connect is over a local Wi-Fi network:
  1. Find the IP address of the target device (usually in Settings > About Phone > Status)
  2. Enter the IP address in the “Remote Device IP address” field
  3. Click “Start” to initiate the connection
192.168.0.73

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Public Network Connection

For connections over the internet, you need to specify the public IP and port:
Ensure port forwarding is configured on your router to forward the ADB port (default: 5555) to your target device.
Required Ports:
  • ADB Port: 5555 (default, can be customized)
  • Local Forward Port: 7008 (used internally for video/audio streaming)
  • Server Socket Port: 7007 (used for communication)

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IPv6 Support

Scrcpy for Android supports IPv6 addresses. When using IPv6:
IPv6 Format
[2001:0db8:85a3:0000:0000:8a2e:0370:7334]:5555
IPv6 addresses should be enclosed in square brackets when specifying a port.

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Connection History

The app automatically saves your connection history for quick access:
  • Up to 30 devices are stored in history
  • Most recent connections appear first
  • Tap the history icon next to the IP field to view saved addresses
  • History is preserved between app sessions
Connection history is not saved when using headless mode.

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ADB Connection Process

When you initiate a connection, the following steps occur:
  1. ADB Connect: App executes adb connect <ip>:<port>
  2. Server Upload: Copies scrcpy-server.jar to /data/local/tmp/ on target device
  3. Port Forward: Sets up local port forwarding: tcp:7008 → tcp:7007
  4. Server Start: Launches the scrcpy server with configured resolution and bitrate
  5. Socket Connection: Establishes TCP connection to 127.0.0.1:7008

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Connection Timeout

The app implements intelligent timeout handling:
  • Initial connection attempts: 50 attempts with 100ms intervals (5 seconds total)
  • Socket connection timeout: 5000ms (5 seconds)
  • Resolution handshake: Up to 1 second to receive device resolution
  • Overall timeout: If connection isn’t established, you’ll see “Connection Timed out 2”

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Reconnection

If the connection drops:
  • The app prompts you to retry the connection
  • Previous settings (resolution, bitrate) are preserved
  • After 3 failed connection attempts, the ADB server automatically restarts
If you’re experiencing repeated connection failures, try manually disconnecting and reconnecting in ADB, or restart wireless debugging on the target device.

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Testing Connection

To verify your connection setup:
  1. Use the local loopback address 127.0.0.1 to test the app functionality
  2. Check the connection history dropdown - it should show at least the loopback address
  3. Monitor the connection status message - successful connections show the remote screen within seconds

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Next Steps

Configuration

Customize resolution, bitrate, and other settings

Troubleshooting

Solve common connection issues

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