/nordic/nordic-blog/b/blog/posts/nrf51-dfu-command-line-osx-app-sampleOSX command line application for performing an nRF51 device firmware update: https://github.com/jeremysf/nrfDFU This is a simple command line program I wrote based on Nordic&#39;s documentation and their RF Toolbox https://github.com/NordicSemiconductoen-USTelligent Community 13https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/nrf51-dfu-command-line-osx-app-sampleFri, 11 Dec 2015 13:32:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:63aae4cf-dd28-4ecd-9488-e28506bf74faJens Str&#252;mper0<p>Hi Jeremy, excellent! Exactly what I was looking for to update my nrf from macosx via ble. I build your tool with xcode, however when I try to discover my devices it won&#39;t connect although I&#39;m able to execute a dfu through the NRf Toolbox. Any idea?</p> <pre> ./nrfDFU discover connecting connecting </pre> <p>Thanks, Jens</p> <img src="https://devzone.nordicsemi.com/aggbug?PostID=862&AppID=4&AppType=Weblog&ContentType=0" width="1" height="1">