After taking some time to figure out what components died after the bead burned, I found the only one is the Ethernet module. One of the most expensive. This led me to adding extra protection to 3V3 power rail, a Zener diode which limit the voltage to 3.9V, I hope :)
But luckily all other components can be taken to new board that I have just received from factory. Next week I will get busy :)
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