HTC One M8 - T-Mobile RUU


This may have been asked before, but several different things on how to do it, i'd rather do the safest as I do not need anything special.

Basically i'm running a network unlocked HTC One M8 and I would like to install the T-Mobile US version of Android to enable Wi-Fi Calling for my visit to USA, this will be it's sole purpose to use over there.

It's running the latest Android/Sense update for the UK, so this could be part of my issue.

I tried running the RUU, on the installer I was getting a small ARUWizard dialog saying "click here to next dialog" meaning i'm unable to select the options on the installer thus once getting to end will say complete and loads more dialogs after.

under bootloader the information is as follows:

*** Software Status: Official ***
*** LOCKED ***
eMMC-boot 2048MB
Dec 17 2015,14:15:48.0

I'm a little out of all this, last time i done any flashing of different rom's, was on the Dell Streak 5, installed the korean network version to get a newer android as there wasn't one release for the UK.

Hope someone can help.



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