I was crashing after a mysterious firmware version appeared 10.3.1.A.0.236 on the device of one of the developers of Sony and now it has become official: Sony Xperia Z and Sony Xperia ZL already have a new update of Android 4.2.2 Jellybean, with build number 10.3.1.A.0.244. Although this update seems to bring a little surprise, which is nothing other than the lose root permissions worth?
The information comes from XperiaBlog and indicates that the new firmware for the terminals of the Japanese company does not appear in the list of models that have obtained the certification of PTCRB. In spite of this and as we have already mentioned, its arrival was a matter of time after images of the appearance of a new firmware version for him Sony Xperia Z.
Anyway and while we wait for the update to Android 4.3 of all the models of the Xperia Z family, we still do not know the changes that this latest version brings C660X and C650X from the Japanese firm.
Although there is one thing that has transpired thanks to a skilled xda-developers user who, through your Twitter account, has advised against the installation by direct flashing of this latest firmware version. Apparently, Sony would have patched the perf_event exploit used to obtain root permissions, so that those users who have updated their device will have verified that, unfortunately, the root of the terminal has become nothing.
In this sense and for those users who want to update their Sony Xperia Z or Xperia ZL, the same user advises the use of applications such as OTA RootKeeper, which in principle should serve to avoid losing root permissions after installing the new firmware version.