https://devzone.nordicsemi.com/f/nordic-q-a/128690/recover-nrf5340-mdbt53-after-wrong-dcdc-config-on-ldo-only-boardHi Nordic, I have a custom board using a Raytac MDBT53 module with nRF5340. The board is designed for 3.3 V / LDO mode, but during bring-up I likely flashed firmware/configuration that enabled DCDC or otherwise set the regulator mode incorrectly. en-USTelligent Community 13Tue, 14 Nov 2017 10:43:53 GMT