I'm happy to report that my fresh compliled bootloader is working on my network settings. I have used Mysensors 1.4 library and included 1.4 mysensors and mysensors/utilities folders in the default makefile as aditional CFLAGS -I parameters tested tonight using a nano i found in one of the quadcopters working like a charm cheers, yuri P.S. changed the subject to [solved]