Starting with version 0.9.19.0, Sony introduced a new flashing method requiring a Flashtool Script (FSC) . If users of older 2014-era phones used these newer versions without the correct FSC, they often faced errors or failed flashes. Version 0.9.18.6 is the final "old method" release that does not require these scripts.
This version allows users to download the latest firmware files directly through the "Update Checker" feature, removing the need for secondary tools like XperiFirm. sony flashtool 09186 exclusive
: Includes built-in support for the Towelroot hack, facilitating easier rooting for supported devices. Comprehensive Device Support Starting with version 0
: You must manually install the appropriate drivers from the Starting with version 0.9.19.0