I need help

this phone was my client he was brought from Three UK and i was check on the setting about the phone and that the Carrier Three UK



IMEI: 013274001401013

Serial: QR309G14A4S

Model: iPhone 4



Warranty: Out of Warranty

Warranty Start Date: N/A

Warranty End Date: N/A



Activation Status: Yes

Locked By Carrier: Unassigned factory default - Apple carriers only. SIM Swap triggers rebricking

Find My iPhone: ON

Sim Lock: Locked





but i need to unlock should i submit on Three UK?



thanks

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