If you do not remember your Google account details, or if the phone cannot connect to the internet, performing a hard factory reset is your best alternative.
Release the button when the LED indicator light turns green.
Navigate down to highlight and confirm your choice with the Power button . Bypass Lock Screen Pattern on SONY Xperia S LT26i
adb shell rm /data/system/gesture.key adb reboot
What or screen message are you currently looking at? Share public link If you do not remember your Google account
What to do if you forgot your pin, password or pattern - Sony UK
Before "Find My Mobile" apps were standard, manufacturers had their own desktop software. For Sony, this was . adb shell rm /data/system/gesture
: After a factory reset, you may still need to verify the Google account previously used on the device (Factory Reset Protection) if the device was running a later Android version, though the Xperia S LT26i typically runs older versions where this may not be as restrictive. How to Reset & Unlock Sony Xperia S