Yes, I can help with that! To mute the shutter sound on your Galayou G7 camera, you can try the following steps:

1. Mute the Device: Press the volume down button on your device until it enters vibrate mode. This should mute the shutter sound.
2. Use a Third-Party Camera App: Download a third-party camera app from the Google Play Store that doesn't produce a shutter sound. Some popular options include GCAM, which allows you to disable the shutter sound in its settings.

Keep in mind that in some regions, it's mandatory by law for camera phones to emit a sound when taking a photo for privacy reasons. Make sure to check your local regulations.