The old LCD display faded and wasn’t readable anymore. The Hantronix HDM128GS24 display is obsolete. Newer displays use a different pin layout. So an easy swap isn’t available. I found a LCM24128 which is similar. I designed a small pcb to adapt the new display to the old pinlayout, given by the header on the flatcable. I added an auto brightness controller. Be3cause the old display didn’t had that and during night time it was quite bright.