Is it possible to recover a reverse powered beagle bone black?

In my enthusiasm to try out my new beagle bone with an external power supply I have just reversed powered it and it is now not responding to anything. Is there anything I can try to recover it, or is it irrecoverably damaged?

Cheers
Rich

If the user LEDs are not blinking at the start - no luck.

Cheers,
Andrey

P.S. Everything has a positive side: buy another one and support the community !

At a minimum, probably damaged the TPS65217C (U2) Power Supply chip.

— Graham

https://www.sparkfun.com/products/retired/10622

Regards,