https://devzone.nordicsemi.com/f/nordic-q-a/19026/how-to-do-nrf51dfu-from-remote-pcI made a custom BLE device using nrf51822 and need to do DFU from remote place. The BLE device is connected using USB to windows PC. The Serial bootloader examples are for Over-the-air DFU using MCP. I need DFU by serial flashing program in directen-USTelligent Community 13Wed, 18 Jan 2017 07:56:46 GMThttps://devzone.nordicsemi.com/thread/73560?ContentTypeID=1Wed, 18 Jan 2017 07:56:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:42c57bb9-4d4f-45bc-8888-bfd5e40bb1bebjorn-spockeli<p>Happy to help :) I would appreciate if you could mark the answer as correct/accepted by clicking the checkmark in the circle to the left of the answer.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/73559?ContentTypeID=1Wed, 18 Jan 2017 05:54:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:18deeb6c-9c6f-43d8-91d3-005cfbdf3f2cshinho<p>Thank you very much.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/73558?ContentTypeID=1Tue, 17 Jan 2017 11:28:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a6d0da4f-f446-487d-9678-b2278700f851bjorn-spockeli<p>The serial bootloader in our SDKs use the UART interface to update the firmware on a nRF51 device, i.e. you should be able to connect the nRF51822 to your computer via a serial interface(e.g. a FTDI USBto TTL converter) and then start the DFU remotely. You can find information about the serial transport layer for SDK v11.0.0 on <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v11.0.0/bledfu_transport_serial.html">this</a> Infocenter page. I also suggest that you take a look at nrfutil v0.5.2 which can be used to perform serial DFU, you can download it <a href="https://github.com/NordicSemiconductor/pc-nrfutil/releases/tag/v0.5.2">here</a>.</p><div style="clear:both;"></div>