[Q] cant understand the problem . help me plz :)

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http://forum.xda-developers.com – recently i update the rom version of my htc my touch 3g . from RUU . i downloaded from htc brazil site . when i updated. it updated all the radio etc and rom also but the firmware is same andriod 1.5 . but on the site it is froyo . i dont know what is this . i updated many times from other sites also . but result is same all the time i get same andriod 1.5 :'( . tell me plz whats the problem and how to update andriod 2.2 froyo official on htc my touch 3g thnx :crying: sorry for wrong english . i am from pakistan (HowTos)