AR300M dead after 4.3.18

I've recently flashed an AR300M with the latest 4.3.18 (from 4.3.17) - Common Upgrade, the router rebooted and I accessed the WebUI, then I put away the router. Upon the next boot, today, I saw all 3 LED flicked once shortly then dead afterwards. I checked 2 power bricks and 2 micro-USB cables with my USB tester, and as soon as I plug in the router - the USB tester turns off (a short, I guess). I think, the router is dead...

EDIT: could a power brick kill it?

Has anyone else experienced it after flashing 4.3.18 on AR300M? Is there ANYTHING I can do to recover it?

The USB Micro connector is only soldered to the circuit board, and its possible that the connector power connection broke.

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It could be... I inspected it and it does not look un-soldered or shorted.
I guess it was time or my power brick killed it. RIP Shadow :face_holding_back_tears:, time for an upgrade

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