To be exact it is a HDC A9100D. Android version 2.3.5 Everything is in english except the android, this has the android icon but chinese writing under it and when I click on it everything comes up in chinese. I also get some notifications that are in chinese.
I have it on optus but my reception isnt that good.
You could root your phone, although do a little reading to know the risks.
Try settings (menu button, wrench thing), language and keyboard, (the somethingth option *someone help!*)
Yes, my phone broke lol