I have moved bootloader from 8.0.0 SDK on top of our custom application. During boot, the softDevice transitions to bootloader as expected. The bootloader then advertises itself as DfuTarg which android version of nRF Toolbox sees. I then use nRF Toolbox's DFU to initiate an upgrade of our application. The android version of DFU shows a successful connection, then displays "Starting DFU", then "0%" then DFU_INVALID_STATE is dislayed. The bootloader is unmodified at this point. Any thoughts?
