https://devzone.nordicsemi.com/f/nordic-q-a/61251/uicr-customer-erasehi, my application use boot and soft device. Is possible with the application erase only the customer register in UICR ? (of course switch off the soft device) This because if I erase all user information I lost the address for the application anden-USTelligent Community 13Mon, 11 May 2020 12:38:39 GMThttps://devzone.nordicsemi.com/thread/249198?ContentTypeID=1Mon, 11 May 2020 12:38:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:46bf771e-3264-482e-b025-dda33d42e7dfMarco Pennacchietti<p><span class="tlid-translation translation" lang="en"><span class="" title="">I did so, now everything works fine</span></span>.</p> <p>I need this function only 1 time on the devices</p> <p>Thanks</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/249196?ContentTypeID=1Mon, 11 May 2020 12:31:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a07ae24a-b3ec-4146-9c45-b43072669fc2J&#248;rgen Holmefjord<p>Hi,</p> <p>It is not possible to erase only parts of UICR, the entire UICR will be erased. If you have data in UICR that needs to be kept, you must read it out before erasing UICR and write it back afterwards.&nbsp;</p> <p>UICR is not intended for frequent updates. If that is the case, I would rather recommend you to store the user information in Flash, for instance using <a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/lib_fds.html">FDS</a>.</p> <p>Best regards,<br />Jørgen</p><div style="clear:both;"></div>