Why does my iPhone keep switching to SOS at home?

Your iPhone is switching to SOS at home because it’s losing normal carrier signal and can only reach emergency networks. The most common causes are weak indoor coverage, a local tower issue, a SIM/eSIM problem, or outdated carrier settings.

Best fixes to try:

• Turn on Wi‑Fi Calling: Settings > Phone > Wi‑Fi Calling. This is the best workaround if your home signal is weak.
• Toggle Airplane Mode: turn it on for 10 seconds, then off to force a fresh network search.
• Restart the iPhone
• Update carrier settings: Settings > General > About, then wait for a prompt.
• Check the SIM/eSIM: reseat a physical SIM if you use one.
• Reset Network Settings if it keeps happening

If it only happens inside your house, the problem is usually your indoor signal or a carrier coverage gap. Check the current price before buying a signal booster; Wi‑Fi Calling is usually the simpler fix.