Try to run example flash_fds example on Nordic DK(10056), but meethttps://devzone.nordicsemi.com/f/nordic-q-a/56470/try-to-run-example-flash_fds-example-on-nordic-dk-10056-but-meetHi Support, This issue happens in nRF5_SDK_16.0.0_98a08e2 and nRF5_SDK_15.3.0_59ac345. Directly import the example from SDK (examples\peripheral\flash_fds) into SES, build it and download to Nodic DK(10056). According to a serial port console, I coulden-USTelligent Community 13Mon, 13 Jan 2020 12:11:55 GMTRE: Try to run example flash_fds example on Nordic DK(10056), but meethttps://devzone.nordicsemi.com/thread/228782?ContentTypeID=1Mon, 13 Jan 2020 12:11:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:760b9449-3f61-43f7-850d-429ad15ca77aVidar Berg<p>It&#39;s unfortunate that you had to spend hours debugging this. It is as you said, the FDS pages must be erased before the first run. Thanks for updating the ticket.&nbsp;</p><div style="clear:both;"></div>RE: Try to run example flash_fds example on Nordic DK(10056), but meethttps://devzone.nordicsemi.com/thread/228715?ContentTypeID=1Mon, 13 Jan 2020 07:29:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6c824403-bf3f-4a84-9962-c6d887e2ab57OceanS<p>After couples hours&#39; research, in function&nbsp;<span>pages_init, if page is undefined, there is a&nbsp; function page_is_erased (in SDK15) or page_can_tag (in SD16) to decide if the page could be used or not. Before I raised this issue above, I didn&#39;t fully erase the flash, which would default set all the page with 0xFF, that shows all the potion of this page is clean. So once I erased the flash thoroughfully, the page_init() would passed.&nbsp;</span></p> <p><span></span></p> <p><span>&nbsp;</span></p><div style="clear:both;"></div>