Booting with solid white, then immediately blue led flashing mode

[frlobo]

For ref. See this post for possible solution:

'EEPROM' persistence issue

The brown-out reset (BOR) functionality is off by default on the STM32. You can see that the first time you run the code below. Those that have the EEPROM persistence issue can try this code to set the brown-out level to a higher value to see if it makes the issue go away. The BOR feature will keep the microcontroller in reset when the voltage is too low. @nicodegunst your code above didn’t actually change the BOR level because it was missing the unlock and launch steps. Can you try this? #in…