Other problems

Miscellaneous problems that might crop up.

Why can’t I access my iPhone in the Finder when I connect it via USB?

In macOS 10.15 Catalina, desktop file exchange with iOS and iPadOS devices is now done in Finder. Connect your iPhone or iPad with a suitable USB cable and it should appear in the sidebar of a Finder window; select it to see options similar to those previously found in iTunes. To make this happen, you need to unlock your iPhone (with your passcode, Touch ID or Face ID), then select it in the sidebar, click the Trust button, and tap the Trust option on your device. You can check “Show this [device] when on Wi-Fi” to see it listed in the sidebar in future without a cable, whenever it’s on the same network as your Mac. If the device still isn’t visible in the sidebar after trusting it, go to Prefs on the Finder menu and, in the Sidebar tab, ensure “CDs, DVDs and iOS Devices” is checked.