Hugfrancis Posted June 29, 2020 Share Posted June 29, 2020 I have one - new - which displays only a few marks on screen. Have done all the obvious (shorted connections, replaced batteries). If you can make it work, happily pay your costs. Link to comment https://www.eastdulwichforum.co.uk/topic/256224-are-you-a-hp-12c-expert/ Share on other sites More sharing options...
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