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Rak7248 won't start Bluetooth pairing

I just unboxed the Rak 7248, plugged it in, and only get a steady red light before and after pushing the black button on the side. No blue light and no Bluetooth device listed. After first plugging in, I see the red light and a green light for 1-2 seconds then green flickers out and red light stays on. The button has no effect.

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