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DFU without bootloader

Hi - I have been unsuccessful using Master Control Panel 3.10.0.14 on win10 to send a new application to a pca10028 with running initial application that supports DFU. What am I doing wrong?

Here is what I am trying:

  • Use nRFgoStudio 1.21.2.10 to erase the device, download sd110 v8, download initial app (Keil compiled)

SDK10/examples/ble_peripheral/app_ble_hrs/pca10028/s110_with_dfu/

  • Use MCP to discover device "Nordic_HRM"
  • Connect, discover services HRS+BAS+DIS+DFU
  • click DFU button and select a new app with hex or zip file e.g. SDK10/examples/dfu/ble_dfu_send_hex/test....nrf51/dfu_test_app_hrm_s110.hex
  • The indicator is stuck at 0%
  • Disconnects with "Error during firmware upload. Disconnected from device while waiting for response for START DFU."

Attached is the log from MCP. mcp_log1.zip

I get the same error with every initial and new hex file combination I try. I also get the same error using SDK11 and S130. What am I doing wrong?

In contrast if I use nRFgoStudio to also download a bootloader (e.g. SDK10/examples/dfu/ble_dfu_send_hex/test...nrf51/dfu_test_bootloader_b.hex ) then I can successfully send hex or zip files. However I want to use buttonless update with an app that has DFU service.

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