At the time of purchase, cell phones generally come locked to the network they are purchased to be used on. The phone's SIM card lock protects your network subscription from unauthorised use. If the SIM card lock is enabled on your Sony Ericsson W660i, you can unlock it very easily using the phone's default PIN code.
- Skill level:
- Moderately Easy
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Go to "Menu" and select "Settings."
Choose the "General" tab.
Go to "Security," then "Locks," then "SIM Protection."
Enter "0000" when the phone asks for a PIN.
Press "OK." Your phone will be unlocked.
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