https://devzone.nordicsemi.com/f/nordic-q-a/26883/nrf51822-flashing-using-image-in-external-flashHello everyone, I am using nrf51822 chip that has functionality to flash bl, sd or app using mobile app application. I want to reuse this functionality in order to have ability to flash device using very same dfu_package but instead of sending it usingen-USTelligent Community 13Wed, 15 Nov 2017 09:21:54 GMThttps://devzone.nordicsemi.com/thread/105666?ContentTypeID=1Wed, 15 Nov 2017 09:21:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:57184519-4b38-4ecc-bdec-555400d1dee3bjorn-spockeli<p>By ISM you mean the ISM band, i.e. 2.4GHz proprietary ?</p><div style="clear:both;"></div>