I am new to gumstix, and excited to receive my first toy, it is an Overo Earth with a Tobi expansion board.

However, when I follow 'Overo: Setup and Programming' 'Getting Started' instructions, I was only able to use kermit to connect to /dev/ttyUSB0, but not be able to power it on after connecting the power. No boot messages and no extra LED illuminating on the board.

I did some search and found that an announcement was made from gumstix that: after June 8th, 2009, all Tobi boards are shipped as r2441, but mine is r2411, could this be a problem?

I ordered my components only a few days ago (around June 20th), any help is appreciated.