There were 2 different builds of .402 released on the same day.
The first one was like this one 'nodrm'
9520_oma
nodrmjAllLang_PBr5.0.0_rel689_PL4.2.0.182_A5.0.0.428.ex e
Vodafone handsets require the 'drm' version to install.
(digital rights management)
You will find that DM or Loader will not acknowledge this build when you go to install it. As it is a leak and not a vendors official release, deleting the vendor file will have no affect.
The file you installed .402 with was...
9520M_PBr5.0.0_rel638_PL4.2.0.171_A5.0.0.402.exe
See how the 'nodrm' part is not present in the file name?
