@Frenzie
@Ken
Thanks for your help, I think advboot is the way for me to go,
but
I made a mistake when I said that my aura h2o has fw 3.17.0

as it's only fw 3.7.0 so now I guess I must upgrade?, what's the most stable fw actually out there, with really usefull features? what do you advice me to install? to register I have followed the precedure described here adding a sql record manually, and want to also manually upgrade the firmware.