Before anyone asks - though they will certainly ask again and miss this, here are install instructions:
Originally Posted by jeffreii
Plug in your phone and use Desktop Manager 6.0 (DM) to make a backup of your device. Also make sure your BBM backup settings are enabled - registered email for remote backup and do a local backup too just in case - look in BBM options.
Close DM and:
Uninstall any OLD BlackBerry OS versions from your computer if you have them. You can find your installed programs in Windows by going to control panel/programs and features. You're looking for "BlackBerry Device Software".
Install .337 to your computer. This means you double click on the OS.exe file that you downloaded and let Windows install it.
C:\program files(86)\common files\research in motion\apploader\
From there delete vendor.xml, if it's there, then run loader.exe
Follow the instructions - make sure you look closely at the list of items that have or do not have check marks next to them so you install what you want and don't install what you don't want.
When the popup asks if it should make a backup of your device and restore your 3rd party apps, it should be selected to do it. Do not change it.
Wait about 15-20 minutes for the process to complete and your phone to reboot completely before disconnecting.
Enjoy and let us know how it went. Always remember it takes several battery pulls while you're getting your phone running again before the OS becomes stable. If it seems slow at first just give it some time to do it's thing and when it seems to have caught up, do another battery pull.
Good luck and feel free to PM me if you have any trouble!
