NRF52 Debug Resurrection (Approtect Bypass) Part 2

Part1... https://limitedresults.com/2020/06/nrf52-debug-resurrection-...

...and the related discussion on HN https://news.ycombinator.com/item?id=23485711

Nordic Semi seems to been handling it somewhat decently now, by acknowledging the flaw officially.

https://infocenter.nordicsemi.com/pdf/in_133_v1.0.pdf