Need help for 8700

[fzw83]

8700's screen display "507"
I already install Desktop manager and os(version 101)
rename vendor.xml as vendor.xml2

but appolication loader display "Don't find software for blackberry device"

WHY?

[takeshi]

Did you close Desktop Manager before renaming vendor.xml and re-open it after? if not, close it and re-open it.