https://devzone.nordicsemi.com/f/nordic-q-a/1014/is-it-possible-to-do-firmware-update-through-usbHi, Is it possible to update the firmware through usb? i have a nrf51822 evaluation kit, and i also tested the firmware update over ble. Now, i need to update the firmware using usb. What will be the application and the procedure required to do the sameen-USTelligent Community 13Wed, 27 Nov 2013 16:11:55 GMThttps://devzone.nordicsemi.com/thread/4790?ContentTypeID=1Wed, 27 Nov 2013 16:11:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e86235cb-1091-49fb-ba0b-51e402457962Ole Morten<p>The UART bootloader application is the same as the BLE bootloader, it&#39;s just a different target. You can select the target in the dropdown next to the download button in Keil.</p> <p>As for USB upgrading, I guess that should be doable if you have some external USB-to-UART chip or similar, but this isn&#39;t something we&#39;ve tested in any way.</p><div style="clear:both;"></div>