you dont need 1.50, you can upgrade from 2.71 b'' i will explaine how to
first
get the 1.50 and 2.71 frimware updates
second place both of them in the seupmaker folder
third run the se maker it will generate the dxar file
forth place the generated dxar file in the seupdate folder
and finaly run the updater it will flash SE C thus deleting all previous modification to the psp and ofcourse SE B" too i hope that help i got no time to make fancy tut so if enyone wana make it go ahead
Bookmarks