Source: Apple Explained
What Does "Only SOS" Mean?
When your phone displays the message "SOS Only," it indicates that it is presently connected to a network that is unable to provide full service. Your phone can only make emergency calls (such as to 911) and may not have access to other network features, such as messaging or internet access.
Why Does My Cell Phone Read "SOS Only"?
There are a number of reasons why your phone may display the "SOS Only" message:
Deficient Signal Intensity
Weak signal strength is a common cause of "SOS Only." Your phone may only be able to communicate to emergency services if you are in an area with poor or no cellular coverage. This can occur in remote areas, buildings with thick walls, and dungeons with a weak signal.
Network issues are another possible cause of the "SOS Only" error. Your phone may be experiencing difficulties connecting to the network, or the network may be experiencing problems that prevent it from providing full service. In such situations, you may be required to delay until the network resolves the issue.
SIM Card Issues
If your SIM card is malfunctioning, your phone might only be able to connect to emergency services. This could occur if your SIM card is damaged, improperly inserted, or incompatible with your phone.
Network Security Shutter
You may only be able to connect to emergency services if your phone is locked to a specific network provider and you are in a location where that provider has no coverage. In such situations, it may be necessary to unlock your phone or transfer to a different service provider.
How Can I Repair "SOS Only"?
Here are some solutions to the "SOS Only" error on your phone:
Confirm Signal Strength
Enter your phone's settings and examine the network status to determine your signal strength. If your signal strength is weak or nonexistent, consider relocating to an area with a stronger signal.
Restart Your Phone
Restart your phone to see if that resolves the problem. Occasionally, a simple restart can remedy network or SIM card problems.
Verify Your SIM Card Ensure that your SIM card is appropriately inserted and unharmed. If you believe that your SIM card has been compromised, you may need to replace it.
Contact Your Network Administrator
If none of the above solutions work, you may need to submit the issue to your network provider. They could provide additional troubleshooting steps or dispatch a technician to investigate the problem.
In conclusion, "SOS Only" on your phone can be an aggravating problem, but there are a number of potential causes. By identifying the potential causes and taking the necessary steps to resolve the problem, you can restore your phone to full functionality and use it for all of your communication requirements.