[Q] Please help me with my AT&T HTC ONE XL...about unlock&root.

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http://forum.xda-developers.com – Well, I got a AT&T HTC ONE X( it's xl actually ).:victory: I need to ROOT that.It said that if I want to root that.I need to unlock that first. So I try to unlock the phone by HTCDEV. One click root not work.:eek: One click unlock not work. :eek: Then there came a error with a error code 160. MID ERROR. Well,then I read some materials and know that unlocking the phone need to root first... Okay, now I have been totally confused with that....... Anyone can tell me how to deal with that? Oh, my version is 2.20.502.7 710RD. It said that it is a root-available versio (HowTos)