HP80 with (apparently) defective display

[aurelio]

(03-20-2020 03:03 PM)BobVA Wrote:  ...or perhaps there is an intermittent / dirty connection between the display and the main board and the small amount of flexing involved in removing the battery cleared it up?

If it comes back I'd first clean all the board / display interconnects. (If you have the schematics you can isolate that segment connection for a particular look.)

thank you Bob, but the problem disappeared assureing a regular contact between the springs and the battery, not just moving or bumping the components.
I prefere to do not open it if not absolutely necessary...