Unofficial archive. This is a read-only, community-run archive of the Apple Support Community. It is not affiliated with or endorsed by Apple Inc.
KABOREAdeline
User level: Level 1 (4 points)

Need help unlocking carrier-locked iPhone 11 Pro Max with 'SIM Not Valid' message

Hello Apple Community,


I have an iPhone 11 Pro Max, model A2161, which was given to me in Burkina Faso. According to the person who gave it to me, the phone was purchased in the United States.


When I insert my Telecel SIM card, I receive the message “SIM Not Valid.” However, the same SIM card works correctly in another phone.


In Settings > General > About, the Carrier Lock section displays a message indicating that the device may be restricted to its original carrier.


I have completed the software update and tried activating the iPhone again, but the problem persists. Unfortunately, I do not know the name of the original US carrier.


How can I identify the original carrier, check whether my iPhone is carrier-locked, and request an official unlock so I can use my Telecel SIM card in Burkina Faso?


Thank you for your help.

Posted on Oct 12, 2026 1:19 PM

2 replies

Rudegar
User level: Level 10 (187,102 points)

Oct 12, 2026 1:26 PM in response to KABOREAdeline

what AI says



"

To find out if your iPhone is locked and which carrier it belongs to, use one of these methods:



1. Check iOS Settings (Directly on the iPhone)

  • Open the Settings app on your iPhone. [1]
  • Tap General. [1]
  • Tap About. [1]
  • Scroll down to look for Carrier Lock (or Network Provider Lock):
    • If it says "No SIM restrictions," your iPhone is unlocked and can use any carrier.
    • If it names a specific carrier or says "SIM locked," the phone is locked to that network. [1, 2, 3, 4]



2. Use an IMEI Carrier Check (Remote Option)

If you do not have physical access to the device or want to verify its original network before buying it secondhand:


  • Find your 15-digit IMEI number by dialing *#06# on the phone or looking in Settings > General > About.
  • Run the IMEI number through an online lookup tool like IMEI Check or UnlockRiver to see the original locked carrier and blacklist status. [1, 2, 3]



3. Test with a Different SIM or eSIM

  • Insert a SIM card or activate an eSIM from a different mobile provider.
  • If you see an alert saying "The SIM card inserted in this iPhone does not appear to be supported," the phone is locked to a different network. [1, 2, 3]


If you'd like, let me know what the "Carrier Lock" screen currently says or why you are trying to check (such as switching providers or unlocking a used phone), and I can help you figure out the next step.

"


find out what carrier i'm locked to iphone : r/NoContract


more

find out which carrier iphone is locked to - Google-

Allan Jones
User level: Level 10 (85,896 points)

Oct 12, 2026 1:33 PM in response to KABOREAdeline

Only the original owner can unlock it. Apple will not.


How can I identify the original carrier,...


Do Settings > Cellular > Carrier Services to get:


Originally posted at discussions.apple.com/thread/256375035