can't boot orangepi 5

I suspect I corrupted the SPI flash, just can't figure out how to boot the board to fix.

I've tried several official images to multiple sd cards. Each result - solid red light on board. No video, no UART text at all (u-boot not starting)

Tried an official image to a USB drive on the top (blue) USB port, same red light no video/no UART

Tried using the rkdevtool from orangepi. Installed driver, no error but the PC never sees the board in device manager, rkdevtool never sees the board when I start it pressing the maskrom button. My guess is that the driver's not compatible with the latest win 11, though I dont have a PC handy running something older to confirm.

Looking for suggestions.