Manually Update Your Droid To 2.1 (ESE81)
If you’ve got the 2.1 itch but don’t want to go through all the trouble of waiting for that pesky OTA to arrive – the folks over at AndroidForums have the solution for you!
One of our Guides, Trident, has worked with a couple other users to get the ESE81 2.1 file and put together a little guide to walk you through the process. So if waiting isn’t your thing (or you’re sick and tired of waiting at this point) and you’re up for the challenge – check it out!
As usual – do this at your own risk. With that said, it’s a pretty straight forward guide and getting a lot of positive feedback. If you have any questions, it looks like he’s stayin’ on top of the thread and answering them.
Side note: The guide is wrote with Windows as the OS in mind, but you should be able to figure it out if you’re on anything else. Also, he explains how to do it without the use of a computer.