Check whether the phone is carrier-locked or screen-locked
Contact the original carrier to request an unlock
Meet the carrier’s eligibility requirements
Pay off any remaining device balance
Confirm the account is in good standing
Request the unlock through the carrier’s app, website, or support
Wait for the carrier to approve and process the unlock
Insert a SIM card from a different carrier to test the unlock
If the phone is screen-locked, use the correct passcode, PIN, pattern, Face ID, or fingerprint
If you forgot the screen lock, use the device’s official recovery or reset process
Back up your data before resetting the phone
Use the manufacturer’s official account recovery tools if available
Visit an authorized service center if official recovery methods fail