How to upgrade firmware after rooted.

Android Hero
  1. Shutdown phone completely.
  2. copy update.zip file into sdcard(/sdcard/update.zip)
  3. hold [HOME] and [POWER] button
  4. display HERO logo.
  5. select "update firmware"
  6. after a while, finish upgrade. then reboot it.

Hik@ri 2.0.4 is better choise so far.
but why, can't use pattern lock function on all of every 2.1 firmware?

Found Bug

The firmware doesn't contain calender application.
so if try to use Calender Gadget, it display error about calender storage couldn't launch.
and sometime can't sync to Google Account and it try to re-connect to google frequent.