Keys | Function | Description |
[ON]+[B] | benchmark | evaluate benchmark compared with orig. calc |
[ON]+[C] | serial console | switch to serial console (see below) |
[ON]+[E] | show information | firmware version & battery voltage |
[ON]+[CHS] | LCD settings | change LCD contrast with buttons [+],[-],[3],[Σ+] |
[ON]+[7] | change font | cycle through three fonts |
[ON]+[9] | change speed | toggle between 12MHz and 48MHz |
[ON]+[/] | key test | same as on the original calculator |
[ON]+[×] | self test | same as on the original calculator |
[ON]+[-] | power reset | same as on the original calculator |
[ON]+[+] | endless test | same as on the original calculator |
[ON]+[.] | toggle . and , | same as on the original calculator |