this post was submitted on 17 Apr 2024
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mmm, I wasn't aware of that; I'm going to investigate. Thank you for the comment!
Just to make it clear; I wasn't saying that you could, I was asking if you could.
ok, doing a first search I have not found information about this particular model
The firmware is definitely not open source, nor can it be modified in any way that I'm aware of. The processor is coated in black resin, so you can't get to the pins. That makes reverse engineering much more difficult. There are some graphing calculators that can have custom firmware installed, but the only scientific calculators that I'm aware of with that functionality would be the SwissMicros line of calculators and the new HP 15C Collector's Edition.