Force Nrf52-Dk as External Programmer

Hello Devzone,

I am working with the Nrf52-dk and a thingy52. When flashing, I face difficulty in determining whether the onboard nrf52 is being flashed, or the thingy is correctly being flashed. I would like to disable the onboard nrf52, similar to how the nrf91dk can be forced to program external by bridging SB24. The solder bridge configuration in the documentation is not clear.

How can I force the nrf52-dk to only function as an external programmer? 

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