Where in Settings should you go to manually check for carrier settings updates on iPhone?

To manually check for carrier settings updates on an iPhone, the correct path is through the General > About section in the Settings. When you navigate to this section, the iPhone automatically checks for updates, including carrier settings. If an update is available, you will see a prompt that provides instructions to install it.

Carrier settings updates can include important upgrades for cellular connectivity and performance, which is why it's essential to perform this check periodically. While other options may involve settings related to cellular features, only visiting the General > About section directly initiates the necessary process to check for and apply carrier settings updates.