I'd like to remind you of a couple of things prior to just jumping in and rooting your phone.
Disclaimer: i am not a mod or an admin, just a humble "helper outer"
Fourth, and this is where the rubbers meets the road.
You need to decide which root method is for you. There are two different proven methods out there. One is known as the root.sh method. This is the simplest method. the long and short of it is this. You download a packet, extract a folder to your SD Cards root directory. Then you download, install and run a program called VISIONary. after you do that you enter a simple command or two to run the script in the extracted folder. you can find that method here root.sh method now this method will work to turn your phone into a rooted s-off phone. and is super easy i used this method to root my phone with s-off before i even left the T-Mobile store when i bought the devices. However it only turns off the security flags. IF you flash the PD15IMG to return to a stock fashion it will remove all SU rights.
the second method is a bit more entailed but completely removes the security flags. IT's called ./gfree method. Now you need to be careful because this will root a phone with a bad eMMC chipset. Meaning it will be easier for you to brick your device. If that happens you own a 200-500 USD paper weight. And as of currently there is no sure fire way to recover from it. you can find more on that method here ./gfree rooting method.
ONLY IF YOU HAVE THE STOCK 2.3.4 (GINGERBREAD) ROM
you must downgrade to 2.2.1 before you can root your phone.
Please see this link http://bit.ly/rugejM.
if you do not know what you are doing i would advise against the OneClickRoot for rooting ANY phone. It's a simple path to enable someone with no knowledge to root their device.
We are glad you have chosen to make XDA your source for all of your hacker needs. But please take some time and read and study prior to doing anything. We'd hate to see you root and brick your phone because you over looked something.
the Q&A section is used for just that Questions and Answers
the Accessory section is for just that Accessories devoted to the HTC Glacier
the Development Section is just that a section where you can find ROMS, Kernels, hacker, and PC/Mac/Linux guides
the App section is just that a place for us to talk about add ons and applications
everything else falls under the general section.
hope you enjoy your stay here.