my pin is locked and i dont know how to off

If you have forgotten your SIM PIN, contact your carrier (phone company) for assistance. Guessing the wrong code too many times might permanently lock the SIM and force you to replace the SIM. (If that happened, you would also need to contact the carrier for assistance.)

Use a SIM PIN for your iPhone or iPad - Apple Support

Contact your carrier for assistance. You’ll need a PUK code (Personal Unlocking Key) from them.