A phone can dial 911 on its own if its emergency calling system is misconfigured or if a software bug or hardware fault triggers it. The fix usually starts with a quick settings check and an update.
What triggers an accidental 911 call?
Phones have a dedicated emergency calling mode that can be activated by a double‑tap or a long press of the power button, a glitch in the operating system, or a faulty sensor. If the device thinks a call is urgent, it will route it to 911 regardless of the number you type.
Check the emergency call settings
On iOS go to Settings → Phone → Emergency SOS. On Android, open Settings → System → Emergency. Make sure the option to auto‑dial 911 is turned off or set to the correct behaviour. Some phones allow a “do‑not‑call” setting that can be enabled.
Update the operating system
Both Apple and Google routinely release patches for emergency calling bugs. If your phone is running an older OS version, download and install the latest update. After updating, test the emergency button to confirm the issue is resolved.
Reset network and system settings
Resetting network settings removes saved Wi‑Fi, VPN, and cellular data that might interfere with the emergency call logic. On iOS, go to Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings. On Android, Settings → System → Reset options → Reset Wi‑Fi, mobile & Bluetooth.
Hardware checks
If the problem continues after software fixes, a damaged sensor or button can cause the phone to misinterpret a press. Bring the device to an authorized service centre for inspection. In rare cases, a faulty power button or proximity sensor may need replacement.
When to contact emergency services
Never ignore a real emergency call. If you suspect your phone is calling 911 accidentally, test the emergency button in a safe environment, such as a quiet room, before using it in a real situation. If you see repeated false alarms, call your carrier or phone manufacturer for support.