https://devzone.nordicsemi.com/f/nordic-q-a/12793/nrfgo-studio-programming-the-chipHi, when i program my eval kit using nRFgo studio, the chip dosen&#39;t work unless i do a hard reset OR put off supply and put on again. Any idea ? My program, is dfu bootloader !! Help please !! My program is working well if do it using keil..en-USTelligent Community 13Tue, 29 Mar 2016 13:43:28 GMThttps://devzone.nordicsemi.com/thread/48624?ContentTypeID=1Tue, 29 Mar 2016 13:43:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:59394d93-6d46-4f87-aec0-7e3ada4e7bbbbjorn-spockeli<p>The chip must be reset or power-cycled after flashing it with firmware, otherwise the device will not run the new firmware.</p> <p>nRFgo Studio should do this automatically.</p> <p>Keil can be configured to do a “Reset and Run” after downloading the hex file to the chip, see <a href="https://devzone.nordicsemi.com/question/2983/why-hard-power-reset-is-needed-after-every-flash-into-nrf51822/">this</a> post on Devzone. However, nrfjprog must be used to flash the bootloader and softdevice, because they write to the UICR registers.</p> <p>-Bjørn</p><div style="clear:both;"></div>