A. 1. Force close the app: Double-click the Home button (or swipe up from the bottom) and swipe up on SmartLinx Go to close it. Reopen the app to see if it still freezes.
2. Clear app cache: Go to Settings > General > iPhone Storage, find SmartLinx Go, and select 'Offload App'. Reinstall it from the App Store to clear any corrupted cache.
B. 3. Restart your iPhone: A simple restart can often resolve freezing issues. Power off your device and turn it back on.