The update brings HTC’s software version up to 2.10.401.1 and weighs in at a very hefty 831.88MB. This means that, like always, it’s probably better to take this OTA over a WiFi connection. Your carrier will thank you.
This time, though, there’s one more interesting item that’s included in the changelog, which we haven’t seen in the US updates yet: “Battery charging time improvement.”
This OTA update was first discovered and posted to Twitter by @LlabTooFeR, thanks to @Rage06:
European HTC One M9 got Android 5.1 update. ROM version is 2.10.401.1 (831.88MB) https://t.co/qiFV8l06iy
— LlabTooFeR (@LlabTooFeR) August 4, 2015