08-01-2019, 12:44 AM
I have a HP-12C(serial #2512A03269) that I have had since 1985. It was sitting in my desk for several years, no batteries installed. Today I bought new batteries and installed them. This is what showed up in my window:
-8,8,8,8,8,P,8,A,8,8,
USER f g BEGIN GRAD D.MY C PRGM
I have attached a photo.
I am wondering if my calculator is beyond redemption. I hope it is not, as I very much appreciate it.
I have tried the clearing of memory - nothing. I even try to turn it off but it stays on with that stuff still in the window. It will shut off in time, but then when I hit the ON button I get the same stuff. [attachment=7568]
-8,8,8,8,8,P,8,A,8,8,
USER f g BEGIN GRAD D.MY C PRGM
I have attached a photo.
I am wondering if my calculator is beyond redemption. I hope it is not, as I very much appreciate it.
I have tried the clearing of memory - nothing. I even try to turn it off but it stays on with that stuff still in the window. It will shut off in time, but then when I hit the ON button I get the same stuff. [attachment=7568]