A newer firmware version Produced for the Sony Xperia SP Smartphone,The new Xperia SP firmware version number (12.0.A.2.250) was certified by the PTCRB for all three variants of the Xperia SP including :
If you do see this New Xperia SP firmware released, it is likely to bring only small improvements over the big(245) update, which brought an expanded quick setting panel and transparent UI in the notification and virtual keys.For those that are currently running the 12.0.A.2.245 firmware on the Xperia SP, you may be glad to hear that DooMLoRD from xda-developers has managed to root the firmware. The method involves using the kernel on which the root exploit works (Sony recently patched the previous exploit), root the device and then flash back to the newest kernel. More information can be found here
Source:Xperiablog
