The Sony company updated the Xperia M with a firmware version of Android 4.3 Jelly Bean. From XperiaBlog, we find out that the firmware version 15.4.A.0.23 for the Xperia M model has been certificate at PTCRB.
At the same time, we are informed that the Xperia M dual SIM has introduced a firmware version update number 15.5.A.0.18 from 15.5.A.0.16.
The Australian operator Vodafone confirmed that the test for the latest Android 4.3 Jelly Bean build has started, earlier this year. Also, the French carrier SFR has declared that it has approved the Android 4.3 Jelly Bean update for Xperia M, but we see that it takes more for Android 4.3 to be initiated.
We wait that Sony Xperia M to begin receiving the Android 4.3 Jelly Bean update in the next weeks, or maybe sooner.
Please let us know in our comments section if you received the new update for your Sony Xperia M device.