Check whether the phone is already eligible for free unlocking through the original carrier
Contact the original carrier and request an unlock
Make sure the device is fully paid off
Make sure the account is in good standing
Confirm the phone is not reported lost, stolen, or blacklisted
Follow the carrier’s official unlock instructions
Use the carrier’s unlock app or website if available
Insert a SIM card from the new network after approval
Restart the phone if needed to complete activation
If the carrier refuses, ask for the exact reason and resolve any eligibility issue
Use only legitimate unlock methods approved by the carrier or manufacturer