Need advice, rebel 500(2019), electrically dead after trying to jump start

Bike isnt starting, there is no light up of dials/dash when i turn ignition.

I was trying to jump bike after a it wouldnt start due to dieing battery and think i burned something out.

I tried replacing the 30 amp fuse in the fuse box and that's not done any good.

Is there anything else obvious to do.

Regards