from Sony, Newflasher is developed by the community (specifically XDA member ) to handle the newer flashing protocols. Xperia Blog How to Download and Use Newflasher
To download and use , a specialized command-line tool for flashing Sony Xperia firmware, users typically look for the most reliable and updated versions to ensure compatibility with modern devices like the Xperia 1 III and beyond. download newflasher v20 best