On Mon, 13 Mar 2017 16:21:24 -0000, Brian Gaff wrote:

To be honest, surely if the switch is dodgy the best thing is to fix it
no matter how much dismantling and remantling is needed.

That's one way of reading what was written. I read it to mean that
the screen occasionally crashes and needs a power cycle to reset it.

--
Cheers
Dave.