- install the os
- unplug your phone
-delete the vendor file
- turn off ALL connections on your phone. The vendor file seems to re appear if when you plug it back in if you don't turn your connections off.
- download BBSAK RIMGeeks.com • View topic - [Beta][8/18/09] BlackBerry Swiss Army Knife v1.5
- plug in your phone
- run bbsak
- click load os
- the apploader will come up and after you click a few next buttons it should come to a page that should have something with the 5.0 os checked off and all you other applications clicked off. press next and it will start installing your new os
BBSAK should find it. I was having a lot of trouble installing this update without bbsak. I w Once I downloaded it and clicked load os, it worked right away! I tried it with apploader by itself and desktop manager and nothing worked. bbsak did the trick. good luck !