if you have CID52, run xs 3.1, connect your phone to it using usb cable while holding c, when connected, you'll have the option to select the GDFS tab, now click phone lock, your user code will be reset to 0000, reinsert battery, now start your phone and goto settings, under general slip down to security/locks/phone protection/protection/startup and select off. you may skip the XS part but to be sure its good you known the security code




