How can I unlock my iPhone carrier

tall16 wrote:

My iPhone SIM card is locked how can I unlock please

Only the phone carrier that the phoen is locked to can unlock it read here How to unlock your iPhone for use with a different carrier - Apple Support

Your phone carrier is the only one that would be able to help you. There are a couple different kind of lacks that they may have to help you with.

• Carrier Lock - Will not allow you to change providers until the terms of the providers carrier lock are met.
• SIM lock - If you have enabled a SIM pin on your phone and entered the wrong one too many times, it will request a PUK code to unlock. If you enter that incorrectly too many times, it will destroy the SIM card and it will have to be replaced.

All the information here needs to be handled by you Cellular provider.