https://devzone.nordicsemi.com/f/nordic-q-a/7991/nrfjprog-failedHello, I installed the new nrfjprog but it fails to write my nrf51 dongle: ERROR: nrfjprog failed for an unknown reason. Run the same command again with ERROR: argument --log, contact Nordic Semiconductor and provide the generated ERROR: log.logen-USTelligent Community 13Tue, 21 Jul 2015 09:43:39 GMThttps://devzone.nordicsemi.com/thread/28634?ContentTypeID=1Tue, 21 Jul 2015 09:43:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:79b96ea7-687e-49ef-8404-d4c259371516Susheel Nuguru<p>you have old nrfjprog version. I do not know how you got it, but it was not supposed to be released with anything.</p> <p>There was an issue in the buffer length in the version you were using buffer_length issue in the new version. Let me check</p> <p>update nrfjprog to the latest release and see if that solves the issue with --chiperase instead of --clean</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/28633?ContentTypeID=1Mon, 06 Jul 2015 10:46:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:70a7e68a-c79e-48cb-93ff-769c97ac9f8eSusheel Nuguru<p>Hi Marius, I saw the log and I think that this is nrfjprog error. We have to wait for two weeks so that people related to this tool return from vacation. Sorry about that.</p><div style="clear:both;"></div>