Furthermore, entering the wrong unlock code too many times can "hard lock" your device. Once a phone is hard-locked, a standard code will no longer work, and you may need to send the device to a specialist for a physical hardware reset. Conclusion
If your phone is fully paid off or your contract has ended, your network provider is legally required to unlock your device in many regions. Locate your IMEI by dialing *#06# . Contact your carrier's customer support. Request the SIM Network Unlock PIN.
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