https://devzone.nordicsemi.com/f/nordic-q-a/13037/dfu-device-type-revision-checksI use dfu_dual_bank_ble_s110 bootloader from SDK10. I want the bootloader to check whether if incoming firmware is compatible with the device it is uploaded to (i.e. device&#39;s device type corresponds to new firmware device type defined in init packet anden-USTelligent Community 13Thu, 07 Apr 2016 09:16:41 GMThttps://devzone.nordicsemi.com/thread/49705?ContentTypeID=1Thu, 07 Apr 2016 09:16:41 GMT137ad170-7792-4731-bb38-c0d22fbe4515:67d6713b-fa8d-4b95-9fcf-778d96ae0c99bjorn-spockeli<p>The device type and revision checks are already implemented in <code>dfu_init_prevalidate()</code> in <code>dfu_init_template.c</code>.</p> <p>You store the device type and revision that the device should accept in the <code>CUSTOMER[0]</code> register (at<code>0x10001080</code>).These values are checked against the values in the init packet, that are specified using the <code>--dev-revision</code> and <code>--dev-type</code> options when creating the firmware image using nrfutil.</p> <p>Please refer <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk51.v10.0.0/bledfu_example_init.html?cp=4_0_1_4_3_1_1_3_1#bledfu_initcheck">this</a> page on our Infocenter for mor information on the Safety Checking mechanism.</p> <p>-Bjørn</p><div style="clear:both;"></div>