This time T-Mobile has updated HTC One M8 and LG G Stylo smartphone on their network to the latest Android 6.0 version.
One M8 Marshmallow Android 6.0 update might provide you with mix results. Check when One M8 Android Marshmallow update ETA, improvements, OTA update details.
HTC One M8 and One M7 Android 5.1 Lollipop Update Now rolling out official to the GPE models. Check the list of features, improvement included.
Guide to manually Flash HTC One M8 GPE with Android 5.1 Lollipop if there is some problem in pulling out the update via Over the Air download[OTA].
After Google delivering Moto G and LG G Pad 8.3 with latest Android treatment, it’s HTC One M8 GPE which gets the Android 5.1 Lollipop update.