Flashtool 0.9.18.6 -

: Version 0.9.18.6 does not support relocking all models. For relocking, use fastboot oem lock manually.

After the device successfully boots, verify:

Before using Flashtool 0.9.18.6 or any flashing tool, adhere to these safety guidelines: flashtool 0.9.18.6

Where to get firmware and help

: Run the application (as administrator on Windows). : Version 0

Flashtool update (0.9.19.0) adds support for 2015 Xperia models

Restart Windows in "Disable Driver Signature Enforcement" mode and reinstall Flashtool-drivers.exe . Bad USB cable connection or corrupted .ftf file bundle. flashtool 0.9.18.6

: This happens if the Volume Down button is released too early, or if the drivers are missing. Re-verify your driver installation steps. Safety and Best Practices