Unplugging it and plugging it back in shows the amazon logo screen for a few seconds then it just goes black.
TV is on the correct HDMI port.
I've tried leaving it unplugged for quite some time.
I've tried putting it in different power sockets.
I've removed the HDMI extender thing and plugged the fire stick directly into the TV port.
I've tried holding down the Up button and Rewind button for 5 (and more) seconds to get it to try and cycle through different screen resolutions.
I've tried holding down select and play to restart it (it just stays black)
Not sure what else to try.
It actually did this a few months ago and back then I was able to contact online help on amazon and the guy talked me through a fix, (but I can't recall the fix) but I can't find where that that online help chat is. I just end up in an infinite loop of help pages telling me to hold down the Up and Rewind button.
Any help much appreciated. Even if it's just how to get in touch with amazon online chat help.