RKDevTool Download Boot Fail

[retroman]

How do I fix this? Now my Cool Pi can't boot.

[retroman]

Ok, I was able to make it work and image has been downloaded to the board, but now it doesn't boot. I don't see the Cool Pi logo anymore. I think the bootloader or something got messed up. How do I fix this?

[大法师]

@retroman which image you loaded?

[retroman]

@大法师 https://www.cool-pi.com/topic/153/cool-pi-4b-can-t-boot-need-help