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STM32F429I-DISC1 stays in reset mode when a external powersupply is used

Question asked by Tirala.Armin on Apr 23, 2017
Latest reply on Apr 24, 2017 by Clive One

I have a STM32F429I-DISC1. When I power it on with a PC everything works fine but when I use a external power supply the board stays in reset mode. I updated STMCubeMX to the newest firmware STM32Cube FW_F4 V1.16.0 but it still doesn't work.

Is this the correct way to update the firmware of my discovery board?