I fought through a couple of problems and had success. After replacing the batteries, my two post were located at the bottom of the board. One post even has a + sign. I touched a screw driver against both posts at the same time. I then pressed the ON / C button and the screen was very faint and then went blank. So I waited a minute and tried these two steps again. The screen gradually returned to the normal display brightness. I guess the unit must use some of the battery juice to get back up and running. It did not happen immediately. With some patience to allow the calculator to “power back up”, it will then operate like it use to. Technology has leaped forward since this calculator was produced. And thank God for giving humans the ability to move forward and improve.
Однажды Они, Вы смогут просмотреть график вашего рейтинга, накопленного за всё время.
Репутация еще не заработана.