https://devzone.nordicsemi.com/f/nordic-q-a/14338/dfu-erase-application-after-init-packetI have a question about when the application is erased during serial DFU single-bank update: According to the S110 Serial HCI documentation , the serial update packets are sent in the following order: Start packet Init packet Data packetsen-USTelligent Community 13Wed, 31 Aug 2016 16:09:27 GMThttps://devzone.nordicsemi.com/thread/54758?ContentTypeID=1Wed, 31 Aug 2016 16:09:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d0eb0261-f1a6-4f21-9ff0-fdeea339bc07sagha<p>I solved this by modifying the DFU state machine in dfu_dual_bank.c and dfu_single_bank.c to erase the memory after the init packet checks pass.</p><div style="clear:both;"></div>