System Requirements: iPhone 4S
Update your device wirelessly (available in iOS 5 and later): 1. Ensure your device is connected to a power source. To avoid potential data costs connect your device to a Wi-Fi network. 2. Go to Settings > General > Software Update. iOS will automatically check for available updates. 3. If an update is available* you can tap Download to download the update. 4. After the download has completed tap Install to update your iOS.
If your not sure, contact your MacMyDay tech for help.