# Set up your iPhone Trust your computer and turn on Developer Mode. ## Connect and trust 1. Connect your iPhone to your computer with a cable that supports data. 2. Unlock your iPhone and open GPSPhantom. 3. When your iPhone asks to trust the computer, tap Trust and enter your passcode. ## Turn on Developer Mode 1. On your iPhone, open Settings, then Privacy & Security. 2. Open Developer Mode and turn it on. 3. Restart your iPhone when prompted. 4. After it restarts, unlock it and confirm that you want to turn on Developer Mode. ## Finish connecting Return to GPSPhantom. Open Device and select your iPhone if needed. Follow any instruction shown there before setting a location. Note: You need iOS 17.4 or later. If Developer Mode is missing, leave GPSPhantom open and reconnect your unlocked iPhone. ## Related articles * [Set a location](https://docs.gpsphantom.com/change-location/quick-location) * [iPhone won't connect](https://docs.gpsphantom.com/troubleshooting/connection)