Posting to facebook from my phone

Why does it not show that I use android or 4g or my touch when I post from my phone on facebook? I have called tech-support (T-Mobile) and they can not help me. I would greatly appreciate the help.

if you're posting from facebook.com (mobile site) then it won't show. you have to post from the facebook app. sometimes it won't show even with the app for rooted users

also go on facebook and go to the group "facebook for android" they have updates there and they may help you if it still doesn't work.

if you are rooted it won't work sometimes because facebook doesn't recognize your phone. i had my G1 rooted with a custom rom and on the facebook mobile site it said "download the facebook app for your MyTouch" but i had a G1. Back when i rooted my first Mytouch i also went on the facebook mobile site and it said "download the facebook app for your HTC Tattoo"