Firmware upgrade over sd card

The UsBizi chipset + sd card make s a great combination, with the sd providing oddles of extra memory, I wondered if there was an option where an image could be saved on to the sd card and then on boot the firmware could be upgraded off the sd card

Another GHI exclusive feature. This is already available see in field update in docs

I must be missing something Ive looked everywhere, where is the info you refer to ?


Oh right I didnt realise this was part of the Ghi classes cool