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Calculator Community => Casio Calculators => Topic started by: SopaXorzTaker on September 24, 2016, 02:28:57 am

Title: Casio fx-ES PLUS hacking
Post by: SopaXorzTaker on September 24, 2016, 02:28:57 am

Hello everybody!
I decided that Omnimaga is a better place to continue my fx-ES research, as my post (http://community.casiocalc.org/topic/7583-fx-82-83gt-115-991es-hacking) on casiocalc.org did not gain much attention.

I am researching the fx-ES PLUS series of Casio calculators, such as fx-82ES PLUS and fx-991ES PLUS.

Known so far:

• fx-ES != fx-ES PLUS. They use different chips.
• The fx-ES PLUS series use a custom OKI (now Lapis Semiconductor) ML610901 microcontroller.
• The forensic result for these calculators is: 9.00000000733338.

No bugs leading to arbitrary code execution have been found yet.

To do:

• [.] Check the PCB test pads with a logic analyzer to look for the CPU's debug interface (such as JTAG)
• [.] Search for arbitrary code execution loopholes
• [.] Find more information on nX-U8 (such as the "nX-U8/100 Core Instruction Manual")

Title: Re: Casio fx-ES PLUS hacking
Post by: Ganju S005 on February 22, 2017, 12:48:06 pm

I have fx-82ES PLUS calculator myself and I am interested in hacking this calculator.
Could you post your findings, PCB photos and etc of your calculators?
I will check how they mach and etc.

Title: Re: Casio fx-ES PLUS hacking
Post by: Reverse Flash Thawne on July 02, 2018, 08:46:58 am

sorry...I'm new to this forum and I'm seriously looking for a hackstring(if there are any), or any other hacks..including upgrade...that could be implemented on my fx82ms..