To be done ....

Upgrade from old version
==============================================================================
- minimum bootloader requirement version 1.15

Upgrade from local file :

 1. Load the file sarek-last.bin from the upgrade server (http://fwup.dmd.it/)
 2. kloader -reset -verbose -serial /dev/ttyUSB0 sarek-last.bin 
    Change /dev/ttyUSB0 with the name of your serial port.

 3. Upgrade the boot loader from the console :
    wget fwup.dmd.it /bsarek-last.bin bsarek
    bootloader upgrade bsarek