FEZ Raptor cannot start

Hello,
I have problem with FEZ Raptor board. I cant connect to this device with FEZ Config, also I cant deploy program with VS2010. After power on, red LED (PWR) is on and Blue LED (near connector 4) is also on (i cant see this LED on before).

Could someone tell me, what is device signalizing with this blue LED or what could I do in this situation?

Thanks.

My program does not set debug led or any other led, but I in this situation I cant upload any new program or perform any communication with FEZ Config or MFDeploy.

I need to perform this steps
https://www.ghielectronics.com/docs/236/loader-tinybooter-update-g400
and now is board working correctly.