Click "Flash." Flashtool will prepare the files. When a pop-up appears: Turn off your phone completely. Hold the button.
If a phone was stuck in a bootloop or refused to turn on, dropping an FTF file into Flashtool could reliably force a clean install over a USB cable. 👎 The Bad: Limitations & Risks Sony Flashtool 0.9.18.6
This version is celebrated in the Android modding community for bundling several crucial features into a single, cohesive interface: Click "Flash