https://devzone.nordicsemi.com/f/nordic-q-a/10761/how-to-update-a-central-role-device-otaHi, I have a device that is configured to work in GAP central role. This device only scans for specific advertisements from specific devices. Could you suggest how I can use DFU bootloader from nordic to update this device OTA. I use s120 softdeviceen-USTelligent Community 13Tue, 23 Feb 2016 16:34:07 GMThttps://devzone.nordicsemi.com/thread/40209?ContentTypeID=1Tue, 23 Feb 2016 16:34:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2f159a50-dce6-4092-8eca-06c466bc0eb2Arjun<p>We moved to S130 just in case. But I see what you mean. With a button we can trigger DFU mode on reset from NRF51 dfu example. We could do this with S130. I suppose it would be same for s120.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/40208?ContentTypeID=1Thu, 10 Dec 2015 10:10:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c791aeba-8c32-4cdb-a8bb-589e2e9f9ee6Hung Bui<p>Hi Arjun,</p> <p>Actually S120 can operate with peripheral role as well. It can&#39;t operate as both role at the same time.</p> <p>You can have a look at <a href="https://devzone.nordicsemi.com/question/32766/s120-dfu-bootloader-sdk-80-softdevice-20/">this case</a>.</p> <p>Do you plan to have a button on the central device that you can press to enter bootloader or you want to set it to bootloader mode from the peripheral device ?</p><div style="clear:both;"></div>