https://devzone.nordicsemi.com/f/nordic-q-a/22861/error-when-connect-jlink-v8-to-nrf52823Hi guys, Currently, I used JLink V8 to program, load code to nRF52823. I connected this JLink to nRf51822, then it works perfectly but when come to nRF52823, it doesnt work anymore and this problem occurs. I connect 4 wires only, Vdd, gnd, SWDCLK,en-USTelligent Community 13Mon, 19 Jun 2017 11:25:28 GMThttps://devzone.nordicsemi.com/thread/89882?ContentTypeID=1Mon, 19 Jun 2017 11:25:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:eaa2a3b6-e851-4586-a42f-ca44bf56cfa0Hung Bui<p>Could you update your question with a close-up picture of your set-up? Note that you need to connect VDD of your target board to VTG on the programmer.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/89881?ContentTypeID=1Fri, 16 Jun 2017 11:29:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7da12f60-a2da-4079-841d-dce056b01d32Keton<p>Segger seems to be detected by nRF Go. Have you tried recovering chip as suggested by nRFGo? Try installing most recent nrf command line utilities and running <code>nrfjprog --family nrf52 --recover</code> from command line. PS. make sure that you have latest J-Link software installed and up to date firmware on your programmer.</p><div style="clear:both;"></div>