Sony recently seeded out a minor performance update (firmware version 12.1.A.1.207) for its KitKat-hungry Xperia SP LTE (C5303) owners on a few specific cellular networks in Europe. To everyone’s disappointment, this firmware still sticks to v4.3 Jelly Bean and only brings a couple of stability improvements and bug-fixes (SP owners should now get used to it). Anyway, you can download the FTF file for this update using the direct download links given below.
