Wireless Hot Reload on Mobile

Prerequisites

• Mobile with USB debugging enabled
• Mobile and laptop on the same Wi-Fi network

Steps

1. Run adb devices to confirm your device is connected
2. Run ipconfig getifaddr en0 to get your machine's IPv4 address
3. Connect mobile to laptop via USB
4. Install the app

   npm run android

5. Disconnect the USB cable — Metro will disconnect
6. Shake the mobile to open the React Native Dev menu
7. Select Settings → Debug server host & port for device
8. Enter your IPv4 and port — e.g. 11.22.33.44:8081
9. Shake again → Reload

Hot reload should now work over Wi-Fi.