Sony rolled android 4.3 12.1.A.0.266 firmware update on Xperia SP after so called delayed crisis and when they rolled Xperia SP user started complaining about so many bugs which this 12.1.A.0.266 firmware brought. Just now it seems a new bug fixing update in form of 12.1.A.1.192 firmware will soon be arriving on Xperia SP as it has just been certified on PTCRB.
12.1.A.1.192 firmware is certified for all variants of Xperia SP. Xperia SP users have complained regarding bugs like volume button not appearing bug, battery drain, lags in phone, high RAM usage etc. Check below the 12.1.A.1.192 firmware certification on PTCRB below.
No ETA is there on 12.1.A.1.192 firmware roll out yet but seeing that bug fixing update over the original android 4.3 firmware on Xperia SP, T, TX and V has been certified at the same time, it may come soon now.
Sony has put Xperia SP android 4.4 KitKat update now under investigation unfortunately, but we do hope KitKat to arrive on Xperia SP. What bugs you are facing on Xperia SP 12.1.A.1.192 firmware currently. Let us know. Drop your comments below.