https://devzone.nordicsemi.com/f/nordic-q-a/77665/does-the-softdevice-handle-disabling-pofwarn-on-flash-writes-erasesWe&#39;re using the nRF52840 along with SoftDevice s140 version 7.01 for a medical device. Reviewing the nRF52840 Errata sheet, Rev2, there is an errata &quot;242 NVMC: NVMC operations during POFWARN cause the CPU to hang.&quot; The hang occurs when POFWAR is asserteden-USTelligent Community 13Tue, 20 Jul 2021 13:36:28 GMThttps://devzone.nordicsemi.com/thread/320928?ContentTypeID=1Tue, 20 Jul 2021 13:36:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bc6ba69e-dbb5-4a18-bd9a-f959fb281827deangereaux<p>Yes, we are using the FDS (Flash Data Storage) SDK library.</p> <p>Thanks for the response.</p> <p>Dean</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/320921?ContentTypeID=1Tue, 20 Jul 2021 13:14:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d7d53a50-d912-4aae-bca8-5eeab2bc2a4bovrebekk<p>Hi Dean</p> <p>This is not handled by the SoftDevice, no, so it is up to the application to disable POFWARN before calling the sd_flash functions, and enable it again afterwards.&nbsp;Are you planning to use any SDK flash libraries, or are you going to access the sd_flash_ API directly?</p> <p>Best regards<br />Torbjørn</p><div style="clear:both;"></div>