Make sure Sony USB drivers are installed on your computer.
(integrated into Flashtool) or reputable XDA developer forums. S1Boot Fastboot Flash Device drivers are installed from the Flashtool/drivers Lock Removal via Flashtool Prepare the File : Place your downloaded firmware in the C:/Users/[User]/.flashTool/firmwares directory. Initialize Flash : Open Flashtool, click the Lightning Bolt icon, select , and choose the Wipe Settings : In the "Wipe" pane, ensure is checked. This is critical for removing the lock screen. Connect in Flash Mode Power off your phone. Volume Down button while connecting the USB cable to your PC.
Steps
Watch the phone's LED indicator. It should turn , indicating it has entered Flashmode. sony c6802 lock remove ftf
In the Firmware Selector window, point the source folder to where your downloaded FTF file is stored.
Click on the located in the top-left corner of the interface.
Click the button at the bottom right. The software will begin preparing the files. This process may take a few minutes. Step 4: Boot the Sony C6802 into Flashmode Make sure Sony USB drivers are installed on your computer
To remove the screen lock (pattern, PIN, or password) on a Sony Xperia Z Ultra (C6802) Go to product viewer dialog for this item.
Navigate to C:\Flashtool\drivers and launch Flashtool-drivers.exe .
On the right side, ensure APPS_LOG and USERDATA are checked under the WIPE section. This is crucial for removing the lock. Initialize Flash : Open Flashtool, click the Lightning
Using the Sony Flashtool to flash an FTF file essentially reinstalls the Android operating system, which clears the device's user data partition, thereby removing the lock screen.
entry. Under the pane, ensure USERDATA and CACHE are checked. This is the crucial step that deletes the lock screen database from the phone. 4. Start the Flashing Process