Flashing a new ROM is one of the most fun parts of having root.
There are many many ROMs out there for the Eris, and to try one other than the one you have running you do this:
1-Find a new
ROM that you think will work for you and save it.
*I have a ROMs folder on my desktop to keep track, I would recomend this.
2-Move the ROM to the root of your SD card.
*Plug phone into computer
*Put into disk drive mode
*Move ROM onto the root of the SD card (Not in any folders)
3-
Back up your current ROM.
4-Boot into recovery
*Method 1 (recomended):Go to the Market and download QuickBoot.
-Open QuickBoot and tap 'Recovery
*Method 2: Power off phone, then hold Vol-Up+End
5- Once in Recovery you should see this screen:
6- From this screen select 'Wipe'
* Do a data/factory reset.
* When it's done go back to the main menu (Vol-down)
7- Now go to 'Flash zip from sdcard'
* Find your ROM and select it
-If your ROM requires flashing of multiple .zip files, do that now.
8-Go back to the main menu and select 'Reboot system now'
* It will take a while to boot the first time.
And you now a new custom ROM.
