Prob have a look at
See if its the one in the shop psu as well.
Grab the image from https://wiki.radxa.com/Rock5/downloads use etcher and try a Pi usb-c if you have one or a usb-c adapter on a 12v.
Then at least you know which to RMA
Prob have a look at
See if its the one in the shop psu as well.
Grab the image from https://wiki.radxa.com/Rock5/downloads use etcher and try a Pi usb-c if you have one or a usb-c adapter on a 12v.
Then at least you know which to RMA