On Tue, 28 Aug 2018 14:09:41 +0300, you wrote:
I send you a bottle of Italian wine !!For a bottle of wine I give the following advice:
Open the unit and remove and reseat the CPU box.
This flat tin can on top, fastened with 2 screws only.
If the error remains do the obvious,
wiggle and reseat all connectors and cables.
Careful when moving the flat cables, they easily go broke.