How To Unlock Sony Xperia S Lt26i - Hardreset... 'link' Access

Use a reputable "unlock code" service (like UnlockBase or CellUnlocker). Provide your IMEI and country. They will email you a 8–16 digit NCK code.

Power off the device completely. If it is frozen, press and hold the power button + volume up for 10 seconds until it vibrates three times and turns off. How to Unlock SONY Xperia S LT26i - HardReset...