Bad HP 35s keyboard. Any luck with warranty?

[Sukiari]

This particular calculator was introduced with bugs years ago and the firmware has never been updated to address those bugs. It’s a joke much like modern HP. There is quite literally no excuse to leave bugs unfixed. Same with the HP 15LE, bugs on release and a big middle finger to the victims. Best stick to classic era HPs or SwissMicros. You’d think with the printer ink profits they could fix a bug but they’re too busy creating and immediately abandoning crapware like the HP Sprout.