1. Select Debug / Prepare to Attach.
2. If using Hot Attach, follow the Hot Attach procedure to safely attach to the Target.
3. Select Hardware / Scripts / Unsecure (can also be Chip Erase or similar).
This operation needs JTAG/SWD debug port to be accessible. Devices, where debug port, is deactivated when secured, cannot be recovered this way. Only available in winIDEA on selected devices: EFM32, Kinetis, Atmel, S32K, LPC546xx, nRF52.
This is a special command for Cortex-M that uses available low-level debug functionality in the target CPU to remove the protection programmed into internal FLASH. This operation erases internal memory and therefore prevents protected code to be read by a third party. Unsecure enables you to regain use of the chip which might get secured unintentionally during application development.
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