Hello All,
I have a HP 48GX calculator, but it does not turn on as it should. In order to turn it on, I have to press around the fifth key area and press the on button simultaneously. And the same procedure to turn it off.
When the item is on, I would like to know if there is a way to test for its full functionality. I have randomly tested it (mindlessly I would say) and all buttons work and it seems like some advance functions work.
I tried with pressing [on] and the fifth key on the top row, but it seems like the calculator needs to be in clear mode in order to test it, or at least this is what it suggesting because it thinks (think?!!)that I am asking for a specific function.
1.In short, do I have to reset the calculator in order to run the self-test function?
2.If so, how do I reset it?
3.Can I run the self-test under such circumstances?
4.How to run the self-test correctly?
Thanks all for any help!!