is this possible? the 2.x update for the Eris is really aggravating me. It's slow, it eats the battery faster, it runs random programs at random times that I don't want there. Sooooo many things are just annoying the hell out of me with it that I want the simplicity to 1.5 back. I am also having issues with 2.x in terms of the browser, and thing just crashing/closing that it is doing more harm to my usage than good things.
Also can no longer get work email without having to put in a ridiculous password every time the screen lots. It's not even an intuitive password screen. 1.5 did not do this.
if 1.5 is what it came with, then i believe you could do a hard (or factory) reset. you'll lose everything and have to set it all back up, but it should reset it to the version that came on the phone. i know on apps, you can uninstall the most recent update that you installed.....but i don't know on the eris if you can do that to the operating system?
There is actually a way to do it but it may brick your phone to do it, go poke arround xda or android forums (or droid forums for that matter...)
Or you could take the phone back to the store and beg them to flash the 1.5 rom back onto the device....