https://devzone.nordicsemi.com/f/nordic-q-a/59976/flash-read-and-write-problemsOthers have had similar problems with pointers for structures. So, I&#39;ve tried several different methods including one that was suggested in another help ticket. I am writing a block structure so I tried using (uint8_t *) &amp;fstorage pointers to no effecten-USTelligent Community 13Wed, 08 Apr 2020 07:04:30 GMThttps://devzone.nordicsemi.com/thread/243979?ContentTypeID=1Wed, 08 Apr 2020 07:04:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:00cd6390-3038-4a6f-aa93-7dc3a91afdc2haakonsh<p>You&#39;re using ASCII characters, &#39;0&#39; and &#39;1&#39; are &#39;NULL&#39; and &#39;Start Of Heading&#39;, and the terminal will interpret that as best it can.&nbsp;<br /><br /><br />Also, you need to use&nbsp;<a title="sd_flash_write" href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s132.api.v7.0.1/group___n_r_f___s_o_c___f_u_n_c_t_i_o_n_s.html?cp=4_6_2_1_2_7_2_9#gae5361e65cbb5e7f6e258947a394c9b55">sd_flash_write</a>&nbsp;and&nbsp;<a title="sd_flash_page_erase" href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s132.api.v7.0.1/group___n_r_f___s_o_c___f_u_n_c_t_i_o_n_s.html?cp=4_6_2_1_2_7_2_7#ga9c93dd94a138ad8b5ed3693ea38ffb3e">sd_flash_page_erase</a>&nbsp;when using the Softdevice, otherwise, you are very likely to encounter conflicts, where a page erase issued by the application, is blocking the SoftDevice from executing.&nbsp;</p><div style="clear:both;"></div>