5 replies to this topic

[Jack]

Are there any software or hardware hacks for my calc? I dont mind potentially breaking it. If not, im happy to test anything anyone might want to try on it.

[EnderFire09]

Yes, you can hack your fx-82AU PLUS II.

 

First note that all of the hacks only work on the LY711X VerA with the checksum of 0A69. You can check in diagnostics mode. To enter diagnostic mode, just look it up, there are plenty of tutorials on how to use diagnostic mode, out there.

 

If the calculator freezes/crashes, press [ON].

 

Firstly, there are two types of REG hackstrings, ones that involve STAT Submode 0 and ones that involve the MathIO overflow (divide bracket) bug.

 

Firstly to get into STAT submode 0 you press [MODE], 2, then you press AC/on then [ON] around 0.5 seconds after pressing AC/on. Note that this may be hard for the first few times you try, but you will get better the more you do it.
If you are successful, you should see that the STAT indicator is on and REG is available in the STAT menu Shift, 1. If you are not the go back into COMP mode and try again.

 

In the REG Menu Shift, 1, 5, you will see 5 characters. We are interested in 2 of them, 'r' and the small 'A'

 

To get 'r', press Shift, 1, 5, 3.

To get the small 'A', press Shift, 1, 5, 1

 

sqrt - square root symbol

 

STAT submode 0 REG hackstrings

 

1. small 'A' by it self - Enters Mode 68

2. 1(1(1(1r - Enters Mode 68 with MathIO

3. A(BCr - Puts the input into table input mode and corrupts the ram, causing the hackstrings to have different results until you press [ON].

4. 1sqrt(1sqrt(1sqrt(1sqrt(1sqrt(1sqrt(1r - teleport cursor far to the right, past the start of the cache, causing basic overflow.

 

 

Now for the MathIO hacks

 

To get 'r' in MathIO you must type Pol(0,1) then press [=], then press ÷, 9, and then press [LEFT BRACKET] until you cant type any more left brackets. Then press [=], the AC/on, ▲, AC/on, [BACK].

Now your should have 'r' and a bunch of other characters next to it. Delete everything except for 'r'

 

Now for the COMP, MathIO hacks:

 

1. (7979(7979(7979(7979r - Enters Vector mode, which is not supported by the fx-82AU PLUS II.

2. A(BCr->M v/[] (Square root) - Enters Mode 68 with LineIO without crashing the calculator, Press AC/on, then [BACK], delete every thing except for the box. Now move the cursor to the left of the box, then press [RIGHT] once. Initially, you cant see what you are typing until you have typed about a dozen characters. You have now achieved basic overflow.

 

 

Terms

 

1. Mode 68 - see http://casiocalc.wikidot.com/mode-68

2. Basic overflow - see http://casiocalc.wik.../basic-overflow

 

 

For more information please visit http://casiocalc.wikidot.com/ and https://community.ca...s-plus-hacking/

Edited by EnderFire09, 06 August 2020 - 08:44 PM.

[Jack]

Thank you so much! I had completely forgotten I made this post tbh, good thing you messaged me. Ill make sure to try it out.

[EnderFire09]

I have started a new thread on hacking the fx-82AU PLUS II

 

https://community.ca...lus-ii-hacking/

 

Come and visit maybe you can see some more hacks eventually.

[CalcLoverHK]

@Jack
Wait wtf you were offlined for one year and you can still receive the message from here?

[Jack]

@CasioFreak Yeah, i got an email lol