Recovering data from fried BBB?

I think I fried the PRU (single blip on the PWR LED upon power on then nada). I tried feeding 3.3v to the board via the header, but still nothing.
Is there a sneaky way to power up a BBB long enough to get data off it?Cheers,

If you fed 3.3V in through the header, that would have been what fried it for good.

We can replace the processor and anything else that is needed. We can stipulate that the eMMC be left as is and just boot off of SD to test out the board…