Root Chinese Froyo update here-

[tiggerlator]

Here is a link to XDA, someone has posted a download link to the chinese Froyo 2.2 update, so for all you rom cookers here it is.

[ROM]RUU_Buzz_Froyo_HTCCN_CHS_2.10.1400.3_Radio_13.53.5 5.24H - xda-developers