Now I have a voice in my head saying "you were sooo stupid to buy this HP calculator"

[BartDB]

(07-30-2015 06:04 PM)Sukiari Wrote:  In the UK there is a fitness for purpose law that says a defective consumer product may be returned for a full refund.
[...]

I know, but now it's out of warranty so I'll have to convince HP that the product was never fit for purpose (and the reason I did not return it earlier was the implied promise of HP about updates to the firmware).