ive done this,im trying to upload new firmware,i can talk to it with the terminal ok,but i cant seem to write to it using the dfu demo program,it sees the vna ok says its uploaded fine and set to verifie the upload but nothing is changed on the vna,in the tatget window in dfu demo if i click on the entrys there it gives all the available sectors but in the info section has a cross in every box,sort of telling me i cant write to any memory locations,ive tried it with a jumper wire and without,also tried using win 7 and xp,i want to load the firmware with bigger fonts!,im pulling my hear out,i just cant seem to write data to it,whats going on,am i missing something or is my vna duff?
