When you see "SOS" or "SOS Only" on your iPhone, it means your phone is not connected to your usual cellular network but can still make emergency calls. This typically happens when your iPhone cannot reach your carrier's network but can connect to another network for emergency services like 911 or 112

. Key points about SOS on iPhone:

• Your iPhone can only make emergency calls, not regular calls, send texts, or use data while in SOS mode

• This mode activates automatically when your phone detects it can't connect to your carrier but can access emergency services through another network

• Common reasons for SOS include poor network coverage (remote areas, underground, buildings with thick walls), carrier outages, SIM card issues, or being abroad where your carrier has no service

• On newer iPhone models (iPhone 14 and later), SOS mode may also include satellite emergency calling when out of cellular range

How to fix SOS mode:

• Move to an area with better cellular coverage

• Restart your iPhone to resolve temporary connectivity issues

• Check for carrier settings updates in Settings > General > About

• Toggle Airplane Mode on and off

In summary, SOS on your iPhone is a safety feature that ensures you can always reach emergency services even when normal cellular service is unavailable