Where can I manually download the Telus HTC One M7 Lollipop RUU?
AFAIK there isn't one.
Why not just download the over-the-air update @aahmad80
Maybe changed carrier?
You should really check on the HTC site for updates. Telus doesn't control whether a device gets the software update. http://www.htc.com/ca/go/htc-software-updates/#device-content