Seeing "SOS" on your phone can be alarming. It essentially means your phone can't connect to your usual cellular network, but it *can* reach emergency services. Think of it as a last resort lifeline.
There are a few common reasons why this might happen. Firstly, you could be in an area with no coverage from your provider, but another network is available for emergency calls. Think remote areas or even basements. Secondly, a problem with your SIM card or account could prevent regular network access. Finally, in rare cases, a software glitch can trigger the SOS mode.
So, what should you do? First, try restarting your phone. It's the classic tech fix! If that doesn't work, check your SIM card is properly inserted. If the problem persists and you're not in a known dead zone, contact your mobile provider. They can help diagnose if it's an account issue or something more serious. Knowing why your phone is displaying SOS is the first step to getting back online – and staying safe.