It is highly compatible with the 3.4.x kernel era of Xperia devices.
Provides a user-friendly interface to handle Xperia bootloaders. flashtool 0.9.18.6
Tools to check bootloader status and facilitate unlocking for advanced users. It is highly compatible with the 3
That said, if you are working with a Sony device launched after 2018, you should use this version. It lacks support for dynamic partitions, A/B slots, and modern SELinux contexts. and modern SELinux contexts.