God all these people are ******ed, simple damn instructions. calm down and think about what people are telling you for christ sake..
Step 1: stop being a ****** and pay attention
Step 2: download the file from megaupload or wherever (I got mine from Mega)
Step 3: mount your phone to the computer and turn on SDCARD storage and select open folder to view sdcard files once AUTOPLAY pops up on computer
Step 4: drag the downloaded file from computer to the sdcard (NOT A FOLDER JUST THE ROOT OF SDCARD)
Step 5: once its transferred, unmount your phone properly and turn your eris off
Step 6: hold down POWER and VOLUME DOWN simultanously (at the same time) < for all you "special" people
Step 7: let hboot load up and it should automatically check the .img file and should say something like "checking file, wrong image" or something and in top right corner of your screen (PHONE) there should be a little status bar loading thats red or blue, do not pull battery or press any buttons, just let it load
Step 8: click trackball when its done loading update and asks do you want to update
Step 9: enjoy 2.1 L2..
pretty damn simple and takes 10 minutes tops, ..