Screen flashing on and off

Johnelf

macrumors newbie
Original poster
Oct 7, 2018
10
0
Surrey Uk
Hi
My ATV4 was all fine until today.
The screen is flashing between full Norman screen and a dark screen. The white light stays on constant.
It changes about every 5 seconds. I have not changed anything. I have also unplugged everything several times, but this has not resolved the issue
John
 

Johnelf

macrumors newbie
Original poster
Oct 7, 2018
10
0
Surrey Uk
Using same HDMI cable as always from RS. Not tried directly yet, it is via the sound bar as it’s always been. I have rebooted everything
 

Johnelf

macrumors newbie
Original poster
Oct 7, 2018
10
0
Surrey Uk
Well it appears it was a cable failure.
Swapped over able and all good. Swapped it back and back came the problem. So that’s gone in the bin. In all the years never known a cable to suddenly go and not a cheap one at that I recall.
Thanks for all the help anyway.
John
 
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