I Aint Sure Mate, I Dont Know Whether You Can Root 1.29 yet...
You Could Definately Lock Bootloader And Flash Official via htc RUU But Not Sure On The Rooting Bit...
Give It A Try And Let Me Know....
http://xdaforums.com/showpost.php?p=25499416&postcount=2777
Cheers, I'll have a crack at it tomorrow when I'm not as tired
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