https://devzone.nordicsemi.com/f/nordic-q-a/9364/persist-bond-information-across-dfuHello, I am currently working on a project based on the ANCS demo from the SDK. Everything is working great with the exception of bonding and DFU. The first step is to connect and bond to my device. The next step is to start the DFU bootloader. I amen-USTelligent Community 13Thu, 24 Sep 2015 10:20:01 GMThttps://devzone.nordicsemi.com/thread/34566?ContentTypeID=1Thu, 24 Sep 2015 10:20:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:33b24f12-8779-44fd-b65c-b4d00fac9cc8MartinBL<p>Thank you for sharing the answer to your question and contributing to the devzone community.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/34565?ContentTypeID=1Wed, 23 Sep 2015 23:15:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e35d10a4-60fa-4525-a3d9-7c099a1412c2Cory Mast<p>The problem was that I was not saving enough pages of flash in the bootloader.</p> <p>changing</p> <pre><code>#define DFU_APP_DATA_RESERVED 0x1000 </code></pre> <p>to</p> <pre><code>#define DFU_APP_DATA_RESERVED 0x1400 </code></pre> <p>solved the issue. In my case I was retaining 4 pages for my application data and I needed to add one more page for the bonding information.</p><div style="clear:both;"></div>