Originally Posted by MrTelephoneMan13
I was hoping it was a matter of just downloading the software from RIM, popping it into the CD-ROM and running it.
It is that simple.
Since you already have BES 4.1.3, you just need to download Service Pack 5 for BES 4.1
You don't need to download the full version of BES 4.1.5... you just need the service pack to do the upgrade.