hi, wonder if someone can help
Previously on Apollo image and was in process of updating to HADES but when i try to update via USB box is just stuck in 'booting' mode.
Everything thing i've read states i shouldn't power down until prompted by box as can cause serious damage, but how do i fix this. It has been booting for over 30 minutes now.

is it likely to be my USB that is causing the issue?
Can i just load the latest HADEs version or should i have started with the first one not version 11

Any help would be greatly appreciated