https://devzone.nordicsemi.com/f/nordic-q-a/14107/lesc-using-uecc-library-with-keilHi We are trying to use the uECC library file (micro_ecc_lib_nrf52.lib) with our project that is built in Kiel. We have followed the instructions found here using the open source micro-ecc example to create the lib file. However, when building theen-USTelligent Community 13Fri, 15 Sep 2017 18:09:50 GMThttps://devzone.nordicsemi.com/thread/53924?ContentTypeID=1Fri, 15 Sep 2017 18:09:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e7abfa55-4917-4845-b9db-2a99dac56f99Mahendra Tailor<p>Just hit the same problem Youssif has again. The sample eddystone app is fine in Keil v5. However my app is built in v4.54.</p> <p>Looks like Nordic needs to supplu a .lib file that was build using v4 keil !!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/53923?ContentTypeID=1Mon, 05 Sep 2016 10:45:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:79d7e7ea-2da1-48ca-a688-c8c36e2f6a71Mostafa Berg<p>Can confirm it works for me, after compiling the library it&#39;s just a matter of opnening any of the example projects in Keil and build. what project are you building ?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/53922?ContentTypeID=1Mon, 30 May 2016 11:01:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:34aa0352-057c-418f-aafa-556e4e879353Petter Myhre<p>But are you testing with the ble_app_multirole_lesc example in the SDK? Or have you made your own project?</p><div style="clear:both;"></div>