A new firmware update has been released for the Xperia SP (C530X). Firmware build 12.0.A.1.284 is rolling out for HSPA+ handsets (C5302), although we see no reason why it shouldn’t be hitting the LTE models (C5303) too. We imagine this new update brings more bug fixes over the previous firmware version (12.0.A.1.257). Let us know what changes you’ve noticed.
Thanks knightthgink!