Shmuel2004
Recruit
I've read a post about converting a CASIO fx-82ES to a fx-991ES from CA50 (thread: https://techenclave.com/threads/unlocking-casio-fx-82es-to-casio-fx-991es.109254/) and I wonder if I am able to do it in a PLUS series calculator. The main reason is: there's no difference between the fx-991ES PLUS pcb to my CASIO fx-82ES PLUS, except for one jumper (P101). Following the logic of the hack for the fx-82ES calculator, I came with the conclusion that the P101 jumper, which is split in half in the 991ES PLUS and soldered in my 82ES PLUS is the key to unlock more modes.
Down below are the photos of the 991ES PLUS pcb followed by my calculator's pcb and the standard 991ES. The only difference between them are the solar panel system and the mentioned P101 (near the processor, next to a row of three test pins). The middle image (my calculator, fx-82ES PLUS) has the solder on the pin, whilst the other two calculators don't.
What I wanted to know is if has someone else had tried to remove the solder in the pin P101 and if they were successful (I don't have a soldering iron and I don't want to risk).
Any help is welcome.
P.S. Sorry about my English, I'm from Brazil
Down below are the photos of the 991ES PLUS pcb followed by my calculator's pcb and the standard 991ES. The only difference between them are the solar panel system and the mentioned P101 (near the processor, next to a row of three test pins). The middle image (my calculator, fx-82ES PLUS) has the solder on the pin, whilst the other two calculators don't.
What I wanted to know is if has someone else had tried to remove the solder in the pin P101 and if they were successful (I don't have a soldering iron and I don't want to risk).
Any help is welcome.
P.S. Sorry about my English, I'm from Brazil