How can I activate my iPhone 4 after restoring it to factory setting?

[iMore Question]

how can i activate my iphone 4 after restoring it to factory setting its sim locked and required career sim card if theres any solution please tell me
my email i.d is [redacted]
imei no of my iphone is
[redacted]
thankssssss.....

 

[kch50428]

You'd need a sim card from the carrier the device is locked to.