Activation Lock is a feature that's designed to prevent theft by requiring you to enter an Apple ID password before using an iPhone or iPad.

Next, select which sounds you want your iPhone to detect. Tap Sounds and choose from the options provided including fire alarms, smoke detectors, dog barking, appliances beeping, door knocking, and ...

If your iPhone feels sluggish, clearing the cache can improve speed and reclaim storage space. Here's how to do it.