Mt11i 4.1.b.0.431 Customized Central Europe 3.ftf.7z _verified_ Jun 2026

: The standard file format for Sony Xperia firmware images, used with the Xperia Flashtool .

Customized Central Europe 3 (indicated by the filename). MT11i 4.1.B.0.431 Customized Central Europe 3.ftf.7z

, which addressed several "re-start" and Wi-Fi stability issues present in earlier ICS versions. Performance Concerns : The standard file format for Sony Xperia