The other day I was playing with the GPIO of the dragonboard and suddenly it enters in a bricked state. Because of that, I try to reflash using the SD method from eMMC, but the board is not entering in sd boot, (displaying the window of install image linaro). I do have set S6 switch to
0-1-0-0. I have followed every step in https://www.96boards.org/documentation/consumer/dragonboard/dragonboard410c/installation/windows-sd.md.html
It just turned the BT led on for around half of a second when connected to the power supply, and then stays dead.
thank you for the help.