This latest update will bring performance and stability improvements and it was hoped that it would also fix bugs from an earlier Android 4.3 update. Sadly the update failed to arrive as stated by SFR, and the carrier has now clarified the situation, saying that Sony has delayed the release by a month, pushing it back from March 21 to April 21. This is said to be because of an issue that Sony has identified.
At this stage we have no way of knowing whether the same update will eventually arrive or whether a new update will be certified, but we’ll be keeping a close eye on this and will keep you informed. We also recently reported on a petition that had been started to bring Android 4.4 to the Xperia SP, but this news about the latest 4.3 firmware update is bound to frustrate many Sony Xperia SP owners, especially those still plagued with problems from the earlier update.