Root How to root htc desire z 2.2 (1.83)

[Hadiir]

Hi
my phone is htc desire z with andriod 2.2 (1.83)

[B]Model number[/B]
[COLOR=Red][B]HTC Desire Z A7272[/B][/COLOR]
[B]Andriod version
[COLOR=Red]2.2[/COLOR][/B]
[COLOR=Red][B][COLOR=Black]Software number[/COLOR]
1.83.466.2[/B][/COLOR]

how can i s-off it or how can downgrade or rooting my phone? please help.tnx.

 

[Hadiir]

plz help me....