Firmware for E1 brain board
It may take over 15 minutes to upgrade E1 and E2 brains that currently have firmware R1.1f or lower.
DO NOT CYCLE POWER when upgrading to R1.2a firmware. The upgrade is complete only after the STAT LED stops blinking for more than 5 seconds. (Firmware R1.2a fixes a defect that causes excessive time to upgrade. See KB85696 for details.)