iPhone 14 SIM Unlock

I have an iPhone 18 that reports “SIM card or network not supported” whenever I insert a non-original carrier’s SIM. The handset itself is fully functional; the lock is strictly at the network level—no passcode, no iCloud activation lock issues are involved.

Your task is to remove this carrier restriction so the phone will accept any GSM or CDMA SIM worldwide. Remote service is preferred; I can supply the IMEI and follow any software-based steps you need on my side (macOS and Windows machines are available).

Acceptance criteria:
• The phone recognises a new SIM from a different carrier without error.
• Calls, SMS, and data connect normally on that new network.
• No recurring lock or relock after iOS updates.

Please outline the method you intend to use, estimated turnaround time, and any information you require from me to begin.