Look at the panel on the upper-right section. To successfully remove the pattern, PIN, or password lock, you must check USERDATA, CACHE, and APPSLOG .
After removing the screen lock, you may encounter the Factory Reset Protection (FRP) screen. This requires the original Google account credentials previously used on the device.
: Any method that removes a screen lock via flashing or hard resetting will erase all user data on the device. h4311 lock remove ftf
: The process typically takes 5–10 minutes. Once you see a "Flashing finished" message, disconnect the cable and turn the phone on. 3. Alternative Method: Hard Reset (No PC)
Some advanced users create their own slimmed-down .ftf file containing only the partition responsible for storing the lock code. This is faster than flashing the entire firmware, as it preserves user data and only removes the lock. However, this method is highly technical, carries a higher risk, and is not officially supported. It is generally recommended only for experts who understand the risks of potentially bricking their device. Look at the panel on the upper-right section
If you prefer not to use third-party tools like Flashtool, Sony provides official recovery options:
How to Unlock Your Phone When You Can't Remember Password - TCL Once you see a "Flashing finished" message, disconnect
: Install the correct Fastboot and Flashmode drivers. These are typically bundled inside the FlashTool installation folder ( C:\FlashTool\drivers ). H4311 FTF Firmware
: Ensure the device is charged to at least 50% to prevent it from turning off during the flash. 📱 Alternative: Button Hard Reset