How to Remove the Screen Lock on a Sony Xperia L2 (H4311) Go to product viewer dialog for this item. Using an FTF File Removing a forgotten pattern, PIN, or password on a Sony Xperia L2 (model H4311) Go to product viewer dialog for this item.
Use the Software Repair feature within the Xperia Companion application on a PC to reset the device and remove the lock. h4311 lock remove ftf
If you prefer not to use third-party tools like Flashtool, Sony provides official recovery options: How to Remove the Screen Lock on a