I used SEGGER Embedded Studio ARM 4.16 to by mistake program a NRF52-DK PCA10040 with a PCA10056 example from your SDK collection. As a result, I now persistently get "Failed to connect to target. No idcode code detected". How do I recover my board?

I used SEGGER Embedded Studio ARM 4.16 to by mistake program a NRF52-DK PCA10040 with a PCA10056 example from your SDK collection. As a result, I now persistently get "Failed to connect to target. No idcode code detected". How do I recover my board?

Tried nrfjprog with no success.
C:\Users\rnkay>nrfjprog --recover
Recovering device. This operation might take 30s.
ERROR: Recover failed. Please make sure that the correct device family is given
ERROR: and try again.
Tried nrfjprog with no success.
C:\Users\rnkay>nrfjprog --recover
Recovering device. This operation might take 30s.
ERROR: Recover failed. Please make sure that the correct device family is given
ERROR: and try again.