Looks as if it's gonna be a chip problem then as it struggles outside as well.
I guess there's no fix, not even from Hanno the great.
Having said that I have fixed a chip problem in a Hughes before by repeated hot
and cold treatment and leaving the batteries in untouched for a month or two.
(Remember the one that was running double double quick time?)
It went to just double time then to correct, took about 4 months.
I suppose this is a little different to a counting issue but don't see another choice.
Unless you guys know better.
NB.
I have already cleaned up the cell side of the module but the display side is
sorta sealed so I can't see it being that.
So I won't be deciding whether to have it Ratners or Accurist until I get the thing working.