https://devzone.nordicsemi.com/f/nordic-q-a/6992/programming-firmware-into-n5-moduleDear Support, we have done some technical question About the N5 module of Dynastream (with nRF51422) we would like to program the software placed into the application, our application by the fixture of our supplier by jtag/swd interface of moduleen-USTelligent Community 13Wed, 13 May 2015 09:35:07 GMThttps://devzone.nordicsemi.com/thread/24659?ContentTypeID=1Wed, 13 May 2015 09:35:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5997bc2a-3f4d-48b9-8387-b54ae2f6f211Stefan Birnir Sverrisson<p>Thank you testy for your input and your .hex file. Further information on the topic is provided on <a href="https://devzone.nordicsemi.com/question/22056/combining-sd-dfu-and-application-hex-and-programming/?answer=22246#post-id-22246">this thread</a>.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/24658?ContentTypeID=1Mon, 11 May 2015 18:04:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:111548ff-8394-4511-8724-850948d8a419testy<p>I can recommend to <strong>merge</strong> app hex together with special hex (sets BANK_VALID_APP flag at BOOTLOADER_SETTINGS_ADDRESS in FLASH - typically 0x3FC00 for 256KB FLASH devices and clears CRC of bank 0):</p> <p><a href="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/APP_5F00_VALID_2D00_settings.hex">APP_VALID-settings.hex</a></p> <p>If app is present, it will run without necessity to perform OTA DFU. If not, device&#39;s (default) bootloader has predefined timeout to connect to host capable of providing app (or softdevice or bootloader).</p><div style="clear:both;"></div>