after much frustration and false alarms.. I managed to upgrade my 8900 from 4.6.1 os to 5.0.0.461!

here's what I did but I will not recommend it if you're updating your OS for the first time or if you have never wiped and reinstall your OS on your own.

1 - install the 5.0.0 os
2 - backed up my files, using DM and BBSAK(3rd party apps).
3 - wiped my bb using BBSAK.
4 - deleted the previous vendor.xml in program files/common files/research in motion/apploader/
5 - connected bb bak into com right after a battery pull, ran apploader and installed 5.0
6 - used BBSAK n DM to restore using my backed up file in step 2.

followed the instructions here - http://www.blackberryos.com/forums/blackbe...res-videos.html

it worked for me imo bb users are quite knowledgeable considering they know how to wipe their own device and fix it haha

edit: Im not on any BIS while I did this. Yet to get my BIS

This post has been edited by cheezzzz: Feb 21 2010, 05:54 PM