https://devzone.nordicsemi.com/f/nordic-q-a/41010/sdk15-2-fds-write-operation-problemHi Nordic, A problem was found with the SDK15.2 write operation. If the write size is equal to 12000 bytes, the system will return an invalid operation length error. But this write length is uint32_t . If you change the write length to 6000en-USTelligent Community 13Tue, 11 Dec 2018 11:55:27 GMThttps://devzone.nordicsemi.com/thread/161177?ContentTypeID=1Tue, 11 Dec 2018 11:55:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8d262cd1-f26a-4c53-9893-024c6db1e0bfEinar Thorsrud<p>This question is a <a href="https://devzone.nordicsemi.com/f/nordic-q-a/41016/sdk15-2-fds-write-operation-problem">duplicate</a>.</p><div style="clear:both;"></div>