https://devzone.nordicsemi.com/f/nordic-q-a/44799/issue-when-debugging-the-nrf-dongle-with-dkHi, I have modified the twi_scanner example of the 52840 DK to be compatible with nRFDongle. I fully erased the dongle with Segger and passed the new hex file with SWD cable. Then I connected an I2C device on the dongle and I can see with logic analyzeren-USTelligent Community 13Wed, 13 Mar 2019 10:26:37 GMThttps://devzone.nordicsemi.com/thread/175882?ContentTypeID=1Wed, 13 Mar 2019 10:26:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b5ac5d58-cba1-4f89-853e-b8e9cf0374e1awneil<p>Duplicate:&nbsp;<a href="https://devzone.nordicsemi.com/f/nordic-q-a/44798/issue-when-debugging-the-nrf-dongle-with-dk">https://devzone.nordicsemi.com/f/nordic-q-a/44798/issue-when-debugging-the-nrf-dongle-with-dk</a></p><div style="clear:both;"></div>