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Unknown function at 0x00020906

RO over 5 years ago

Hello,

I'm flashing custom code onto a nRF52840 based PCB.

I'm using SDK v14.2, SES 4.52.

The board was running fine for a couple of days.

Suddenly when I reflashed to debug, I got the following error: Unknown function at 0x00020906

What might have happened suddenly?

Thanks