I have a Nexus 5 phone that randomly switches to a static display. At that point I just need to power it off and back on again and it usually works. It will randomly go back to the static screen after some usage, but it's totally random, sometimes it goes hours without doing that.
Is there anything that maybe loosened up with time? The phone has been very well cared for, no falls or visible damage and has also been kept in a pocket.
What could be the problem? Is it likely to be a motherboard issue or something simpler?