Well, just wanted to report 2 sim-unlocking successes on 2 K800i - Vodafone UK and 3 network, using

1) XS++ 3.1
2) SETools2 1.11
3) Simlock Patch Generator 2.1

on
K800_R8BA024_MAIN_CHINA_WI_RED52
K800_R8BA024_FS_APAC_RED52

Many thanks Simox...:)