Aaron Christophel’s Open Source Tool Unprotects, Reads, and Flashes Any nRF52 From an ESP32

Designed to unlock protected nRF52 SoCs, Christophel’s tool follows on from a similar exploit discovered for protected STM8 chips.

Developer Aaron Christophel has released a tool to read and write the internal flash of any part in the Nordic Semiconductor nRF52 family — using little more than a low-cost Espressif ESP32 microcontroller.

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