Attempting to flash an FTF without proper preparation can brick your Sony E6833. Follow these prerequisites carefully.
Click the lightning bolt icon → Select .
adb shell rm /data/system/gesture.key adb shell rm /data/system/password.key sony e6833 lock remove ftf
While the process requires technical patience and driver setup, it is far cheaper than a paid unlocking service or sending the phone to Sony. Just remember: this is a data-destructive method. Use it as a final resort when all recovery and ADB options are impossible.
| Error Message | Cause | Solution | |---------------|-------|----------| | ERROR - Drivers need to be installed | Missing GordonGate driver | Reinstall drivers from FlashTool folder, disable driver signature enforcement in Windows | | ERROR - Device connected in flash mode but no response | USB cable issue or wrong port | Use USB 2.0 port, try a different cable | | ERROR - Processing of system.sin finished with errors | Corrupted FTF file | Re-download firmware or create bundle again via XperiFirm | | Phone bootloops after flash | Wrong FTF variant | Flash again using a different customization number (e.g., from India to Europe) | | Google account still asks for login (FRP not removed) | FTF had a persistent misc partition | Flash a or older Android version. Try 7.1.1 build 32.4.A.1.54 specifically | Attempting to flash an FTF without proper preparation
icon inside Flashtool) or a dedicated "lock remove" FTF file Step-by-Step Flashing Guide
: After resetting, you may encounter the Factory Reset Protection (FRP) lock, which requires the original Google account credentials used on the device. adb shell rm /data/system/gesture
To remove the screen lock on your Sony Xperia Z5 Premium Dual (E6833) using an , you must