DFU Firmware Update not working, unlikely errorhttps://devzone.nordicsemi.com/f/nordic-q-a/8089/dfu-firmware-update-not-working-unlikely-errorHello I try make a firmware update with nrf toolbox for iOS and i have a popup with &quot;Please enable Service Changed Indication in your firmware&quot;. In code, I have an error: &quot;error in writing characteristic 00001531-XXXXXXXXXXXXXXXXX and error Unlikelyen-USTelligent Community 13Fri, 10 Jul 2015 08:37:40 GMTRE: DFU Firmware Update not working, unlikely errorhttps://devzone.nordicsemi.com/thread/29043?ContentTypeID=1Fri, 10 Jul 2015 08:37:40 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c632f513-8539-4c8f-b98e-f71f51f1f5e2Hung Bui<p>@anthony: Please do what suggested in nRFtoolbox: &quot;Please enable Service Changed Indication in your firmware&quot;</p> <p>Make sure you have the service changed indication in your DFU service.</p> <p>You can send me a screenshot of what you have in your attribute table, using Master Control Panel.</p><div style="clear:both;"></div>