The update to Flashtool v0.8.6.0 comes with several notable improvements and additions. While the incremental change might suggest minor tweaks, the new version actually packs significant enhancements under the hood. Here are some of the key features and changes:
: You must install "Flashmode" and "Fastboot" drivers. These are typically found in the C:\Flashtool\drivers folder after installation. : Flashing will erase all user data . Back up your phone before starting. : You need a firmware file in format. You can use the built-in to download official firmware. Step-by-Step Flashing Guide How to use Newflasher to flash Sony Xperia
A: There is no "official" source because the update is community-generated. The safest bet is to download the original v0.8.6.0 from GitHub (as a base) and apply the driver hotfix from the XDA thread titled "[TOOL] Flashtool 0.8.6.0 Windows 10/11 Driver Fix."