https://devzone.nordicsemi.com/f/nordic-q-a/12863/problem-using-ulink2-to-flash-nrf51822i am using nrf51822 wavshare kit with ulink2 debugger. when ever i try to program the kit using keil the error pops like &quot;overlapping of address in 00014000H&quot;. then the eraseall function from nRFgo studio is not enabled when i connect the kiten-USTelligent Community 13Thu, 31 Mar 2016 14:29:25 GMThttps://devzone.nordicsemi.com/thread/48934?ContentTypeID=1Thu, 31 Mar 2016 14:29:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0e09b5c6-fbce-462d-ba94-be617104eb00bjorn-spockeli<p>Take a look at <a href="https://devzone.nordicsemi.com/question/21461/programming-softdevice-with-ulink-me/">this</a> post regarding programming the nRF51 with a Ulink programmer.</p> <p>Please be aware that you cannot program the UICR registers of the nRF51 using the Ulink2, this is needed when flashing our DFU Bootloader.</p> <p>Lastly, we recommend using Segger programming/debugging probes with our products.</p> <p>-Bjørn</p><div style="clear:both;"></div>