Flashtool 0.9.18 ⇒ < Newest >
While 0.9.18 was excellent for devices like the Xperia X10, Z, and Z2, it newer models (post-2017) like the Xperia XZ1 or XZ Premium. For those, you would need version 0.9.24.2 or higher, which also requires a 64-bit OS and Java 9.
Install the "Flashtool-drivers.exe" found in the drivers folder of the installation directory. Be sure to select "Flashmode" and "Fastboot" drivers. flashtool 0.9.18
Solution: This is a standard boot loop. You likely forgot to check the boxes in Step 3. Repeat the flashing process and ensure all wipe boxes are checked. Final Words of Caution While 0
Easily install official .ftf firmware packages. Be sure to select "Flashmode" and "Fastboot" drivers
Flashtool 0.9.18 is a powerful tool that offers a wide range of features and benefits for Android device users. While it's not without risks, the software provides a user-friendly interface and access to a wide range of customization options. If you're looking to take control of your device and explore the world of firmware flashing, Flashtool 0.9.18 is definitely worth considering.