https://devzone.nordicsemi.com/f/nordic-q-a/17871/is-it-possible-update-the-firmware-in-ibeaconsHi,I have ibeacon (nRF51822) radioland-china.en.alibaba.com/.../long_range_300m_ibeacon_programable_nrf52822_beacons_bluetooth_4_0_tag_chip.html . I want to update the firmware in ibeacon to change the frequency of beacons transmitting,i found that, oneen-USTelligent Community 13Mon, 21 Nov 2016 13:11:59 GMThttps://devzone.nordicsemi.com/thread/68887?ContentTypeID=1Mon, 21 Nov 2016 13:11:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7978579e-418b-4843-b8c9-9f30fdf226c3mani<p>Thanks Jorgen</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/68886?ContentTypeID=1Mon, 21 Nov 2016 12:12:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d28711b8-d581-478f-a739-0dac38455baeJ&#248;rgen Holmefjord<p>Hi,</p> <p>From the diagram, SWDIO and SWCLK pads are exposed. You should then be able to update the firmware using a Segger degugger supporting the SWD interface. See chapter 11 of the <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf51/dita/nrf51/pdflinks/ref_manual.html?cp=3_2">nRF51 Reference Manual v3.0</a> for more information about the debugging interface.</p> <p>If the firmware support (legacy) DFU, it could also be an alternative to update the firmware OTA.</p> <p>Best regards,</p> <p>Jørgen</p><div style="clear:both;"></div>