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new custom board of k64 series controller always showing device is secured cant program although controller is new one. How to solve this issue?

Question asked by Yogesh Digraskar on May 13, 2017
Latest reply on Jun 21, 2017 by Fang Li

We have developed new custom board with MK64FN1M0VLL12 controller but it is showing controller is secure whenever we try to program although controller is solder new one received from company and not used before. 


Why this is happening and how to solve this issue?