The story goes something like this: You recently bought a refurbished iPhone and the description of the online market (or the person who sold it to you) promised the iPhone is Network Unlocked. But as soon as you inserted your Carrier’s SIM card you got an ”iPhone SIM not supported” message.
Depending on the iOS version this message could also be:
- No SIM card Installed
- Invalid SIM
So, what can you do when the SIM card inserted in this iPhone does not appear to be supported. Is the iPhone really SIM locked? And if it is, what can you do to Carrier Unlock this iPhone? (Read our 3 methods to check if an iPhone is Unlocked)
Read this article and find all the answers!
How to fix the ”iPhone SIM not Supported” problem
First of all, don’t panic! You have to determine if the ”iPhone SIM not Supported” error is a Software, Hardware or Network issue!
- Make sure that the SIM card you inserted in the iPhone is still under an active plan with your Mobile Network.
- Contact your Mobile Network and check for activation or network issues. Maybe you need to replace your current SIM card.
- Update your iPhone to the latest iOS version.
- Try turning airplane mode on and off.
- Restart the iPhone.
- Go to Settings > General > About and check if there is a Carrier settings update.
- Remove the SIM card from the SIM card tray and then put it back. Make sure that the SIM tray closes properly. Sometimes using a SIM tray from a different iPhone model or another smartphone manufacturer creates this ”iPhone SIM not Supported” problem.
- Try using another SIM card. Maybe your SIM card is damaged! After all, No SIM or Invalid SIM alerts are displayed when a SIM card is damaged, locked, or missing.
- If a SIM card was used with this iPhone until recently and even if the SIM card’s contract has expired, the iPhone might need this specific SIM card in order to get activated.
- In case you are using a cellular data connection, try to connect to a Wi-Fi network (that you know that is reliable) instead. If the Wi-Fi connection fails, try connecting to iTunes.
- If you’re using iTunes to activate your iPhone, make sure that iTunes is updated to the latest version.
- Use recovery mode and restore the iPhone.
Sources: Apple Support page and various Apple SIM card issues question threads
If the ”iPhone SIM not supported” problem persists then the iPhone you are holding in your hands is most probably SIM locked or even Blacklisted!
How to check if ”iPhone SIM not supported” message means that the iPhone is Locked
All the hints I showed you above, ensure that the iPhone has a Hardware or Software issue but the only way to determine the iPhone’s:
- SIM Lock Status
- Blacklist Status
- Which Mobile Network locked or Blacklisted (for what reason and in which country) the iPhone
- iCloud Activation Lock Status
- In Contract Status
- Apple Warranty Status
- Insurance Claims Status
- Replaced IMEI/Serial number Status
- True Specs
- Current Market Value
is the iPhone IMEI Check Service.
This service has certified access to Apple GSX databases and needs only the iPhone’s IMEI number (click here and learn how to find it out) in order to uncover all iPhone’s hidden issues and make sure that your iPhone is eligible for iPhone Unlocking!
How to remove the ”iPhone SIM not Supported” error on Carrier locked or Blacklisted iPhones
Now that the iPhone IMEI Check Service exposed the real source of evil, you know which demon to banish and you have 2 iPhone Unlocking Options at your disposal:
- Mobile Networks’ SIM lock deactivation services
- 3d party Official IMEI Unlock Services (aka Factory Official Unlock)
Of course, you should first contact your Carrier and find out if you can use its iPhone SIM Unlocking Services but in most cases, it is impossible to use them on refurbished iPhones due to steep requirements and paperwork!
On the other hand, Factory Official Unlock Service:
- Works with every iPhone Model, iOS version, Baseband and Carrier
- Unlocks the iPhone to ALL GSM Networks PERMANENTLY
- Works with Blacklisted iDevices (click on the Blacklist Status link I provided above and see what changes in this situation)
- Is approved by Apple and all Mobile Networks
- Doesn’t spoil Apple Warranty, AppleCare+ or Insurance Plan
- Doesn’t need Jailbreaking or iPhone modifying
- Works with already jailbroken iPhones without spoiling the jailbreak Status
- All iPhone’s features and functions work perfectly fine after the SIM Unlocking procedure (iOS Updates, iTunes, etc.)
- Supports PayPal
Official IMEI Unlock Service legally enters Apple GSX Databases and Carriers’ servers in order to find your iPhone and change the SIM Lock Status from Locked to UNLOCKED PERMANENTLY.
To use a Factory Official Unlock Service, you will need:
- The iPhone’s IMEI number
(check the link I provided above, if you don’t know how to find your iPhone’s IMEI number)
- The iPhone model
- The iPhone’s Blacklist Status
- Which Mobile Network has locked or Blacklisted your iPhone
But you already know this stuff thanks to the iPhone IMEI Check Service!
We did our part and tested more than 40 IMEI Unlock Providers in order to find the most trusted and reliable iPhone Unlocking Solutions. Check our recommendation:
Leave a comment below & take care!