BLE DFU fails after 4 seconds

BLE DFU fails after 4 secondshttps://devzone.nordicsemi.com/f/nordic-q-a/96104/ble-dfu-fails-after-4-secondsHello, I am using a custom app that uses Nordic's DFU library to update my device. It works most of the time but for some users, the process fails about 4 seconds after it starts. I have no idea what can be causing the bug because i cannot replicateen-USTelligent Community 13Fri, 27 Jan 2023 17:10:39 GMTRE: BLE DFU fails after 4 secondshttps://devzone.nordicsemi.com/thread/406925?ContentTypeID=1Fri, 27 Jan 2023 17:10:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3d827bec-c403-4f08-a50b-0f4f23ca9b90Amanda Hsieh<p>Hi, </p> <p>It's hard to say what could be the cause, but I would suggest you compare the <a href="https://www.nordicsemi.com/Products/Development-tools/nRF-Sniffer-for-Bluetooth-LE">sniffer log</a> with the success and failure cases to see what differences in behavior are.  That might help you debug. </p> <p>Regards,<br />Amanda H.</p><div style="clear:both;"></div>