Sony is releasing a new firmware update for Xperia M5 (30.1.A.1.33) and Xperia M5 Dual (30.1.B.1.33). They now included Android 5.1, probably because Android 5.0 had some bugs and inconsistent performance.
As of now, the update is rolling to all variants, available on XperiFirm, except E5643 (exclusive Brazilian model with TV receiver).
Feedback is welcome.


As of now, the update is rolling to all variants, available on XperiFirm, except E5643 (exclusive Brazilian model with TV receiver).
Feedback is welcome.
Download from this link