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F2811 Got Locked



Hello,

I am programming my device and it has been working fine.

Now, i am trying to change the codes, but it gave me a message as in the attachment.

For some reasons, it thinks that it is locked.  i did not encounter a cycle power issue or any issue in the last programming.

Now, the device is still functioning.

i tried to go to On-chip Memory and do unlock, but it failed to do so.

can you please let me know what else i can do to change it back to programming besides replacing the device?

Thanks,

henry