Android Lollipop 5.0.2 update for T-Mobile Xperia Z3 and Xperia Z1s users in USA is very near now as T-Mobile has officially confirmed that the Lollipop update is in testing process now, at this stage device will undergo T-Mobile certification process.
A few days we back we saw Android 5.0.2 Lollipop 23.1.C.0.385 & 23.1.C.0.381 firmware getting certified for Xperia Z3 D6616 and for Xperia Z1s C6916 14.5.B.0.228, 14.5.B.0.220, and 14.5.B.0.236 firmware got certified on PTCRB.
T-Mobile USA testing Lollipop update
Check out the Android 5.0 “Lollipop” testing notification from T-Mobile for Xperia Z1s below (at present on KitKat 14.4.B.0.56 build).
As per T-Mobile, Lollipop update for Xperia Z3 is scheduled for May 2015 rollout.
We will keep you updated once Lollipop update rolls for T-Mobile Xperia Z3 and Xperia Z1s users in USA.