Sony recently made the Android 4.4.4 KitKat update for a great deal of Xperia devices including Xperia Z, Xperia Tablet Z, Xperia ZR and Xperia ZL aimed to provide improved battery performance, updates for native Sony apps, stability patches for Email, as well as general performance enhancements. Right now, we’ve got our hands on the FTF files of 10.5.1.A.0.283 firmware for Sony Xperia ZL C6503 from Russia. You can download this package through the direct download mirrors given below and then flash it using the latest version of Xperia Flashtool.
