https://devzone.nordicsemi.com/f/nordic-q-a/21959/manufacturing-specific-data-is-not-changingWe followed the instructions for the beacon example for nrf 52 dk. Multiple attempts to change and reset the board, there was no change in the ad packet. Can someone help? nrfjprog -f nrf52 --memwr 0x10001080 --val 0xabcd0102 I used this codeen-USTelligent Community 13Thu, 11 May 2017 14:54:25 GMThttps://devzone.nordicsemi.com/thread/86175?ContentTypeID=1Thu, 11 May 2017 14:54:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7c5d2277-f5ac-49eb-b749-914b791cb3f2binhnguyens<p>that was the problem. thanks so much!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/86174?ContentTypeID=1Thu, 11 May 2017 07:32:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:928deabc-1ff3-46ac-b7bc-e70129614425Sigurd<p>Did you remember to add the <code>USE_UICR_FOR_MAJ_MIN_VALUES</code> to the preprocessor symbols ? And after using nrfjprog, you turned the board off and on again? <img src="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/USE_5F00_UICR_5F00_FOR_5F00_MAJ_5F00_MIN_5F00_VALUES.png" alt="image description" /></p><div style="clear:both;"></div>