## Add matrix calculations and natural display to 7400GII

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**1**of**2**•**1**, 2- Raafat
- Junior Member
**Posts:**6**Joined:**Tue Jan 10, 2017 12:27 pm**Calculators:**Casio fx-7400GII, Casio fx-7400GII (SH4)

### Add matrix calculations and natural display to 7400GII

Heyy,

Is 7400GII upgradeable to 9860GII or can be made to support natural display and matrix calculations

If so, how?! I am in desperate need for those two functions and couldn't afford 9860GII

Is 7400GII upgradeable to 9860GII or can be made to support natural display and matrix calculations

If so, how?! I am in desperate need for those two functions and couldn't afford 9860GII

- SimonLothar
- Senior Member
**Posts:**603**Joined:**Sat Sep 15, 2012 6:59 am**Location:**Krautland ******Calculators:**Casio fx-7400GII, Casio fx-7400GII (SH4), Casio fx-9750 G II, Casio fx-9750 G II (SH4), Casio fx-9860G, Casio fx-9860 G SD, Casio fx-9860G Slim, Casio fx-9860 GII SD, Casio fx-9860 GII SD Power Graphic 2, Casio Classpad 330 plus, Casio fx-CG 20, Casio Classpad fx-cp400, Casio fx-CG 50

### Re: Add matrix calculations and natural display to 7400GII

The fx-7400GII has only a 2 MiB flash. The fx-9860GII OS does not fit.

I'll be back!

- Raafat
- Junior Member
**Posts:**6**Joined:**Tue Jan 10, 2017 12:27 pm**Calculators:**Casio fx-7400GII, Casio fx-7400GII (SH4)

### Re: Add matrix calculations and natural display to 7400GII

So how to add thodes two functions only? I need them like hel!

- SimonLothar
- Senior Member
**Posts:**603**Joined:**Sat Sep 15, 2012 6:59 am**Location:**Krautland ******Calculators:**Casio fx-7400GII, Casio fx-7400GII (SH4), Casio fx-9750 G II, Casio fx-9750 G II (SH4), Casio fx-9860G, Casio fx-9860 G SD, Casio fx-9860G Slim, Casio fx-9860 GII SD, Casio fx-9860 GII SD Power Graphic 2, Casio Classpad 330 plus, Casio fx-CG 20, Casio Classpad fx-cp400, Casio fx-CG 50

### Re: Add matrix calculations and natural display to 7400GII

Unfortunately the functions are no replaceable modules.

They are deeply embedded and entangled in the operating system.

If possible at all, you'd need the operating system's source code. But that is far out of reach.

Sorry.

They are deeply embedded and entangled in the operating system.

If possible at all, you'd need the operating system's source code. But that is far out of reach.

Sorry.

I'll be back!

### Re: Add matrix calculations and natural display to 7400GII

Can we block Critor from answering this question?

Thanks.

Thanks.

- critor
- Member
**Posts:**43**Joined:**Wed Jul 24, 2013 3:33 am**Calculators:**Casio fx-7400GII (SH4), Casio fx-9750 G II (SH4), Casio fx-9860 GII SD, Casio Classpad 330, Casio Classpad fx-cp400, Casio fx-CG 50

### Re: Add matrix calculations and natural display to 7400GII

Raafat wrote:Is 7400GII upgradeable to 9860GII or can be made to support natural display and matrix calculations

No, the fx-9860GII OS is far too big.

But it's possible to upgrade it with a smaller fx-9750GII or Graph35+ OS to have what you want.

TeamFX wrote:Can we block Critor from answering this question?

Thanks.

- Raafat
- Junior Member
**Posts:**6**Joined:**Tue Jan 10, 2017 12:27 pm**Calculators:**Casio fx-7400GII, Casio fx-7400GII (SH4)

### Re: Add matrix calculations and natural display to 7400GII

critor wrote:Raafat wrote:Is 7400GII upgradeable to 9860GII or can be made to support natural display and matrix calculations

No, the fx-9860GII OS is far too big.

But it's possible to upgrade it with a smaller fx-9750GII or Graph35+ OS to have what you want.TeamFX wrote:Can we block Critor from answering this question?

Thanks.

What to do to have thiese smaller.OSes? How to download them onto the calculator?

- critor
- Member
**Posts:**43**Joined:**Wed Jul 24, 2013 3:33 am**Calculators:**Casio fx-7400GII (SH4), Casio fx-9750 G II (SH4), Casio fx-9860 GII SD, Casio Classpad 330, Casio Classpad fx-cp400, Casio fx-CG 50

### Re: Add matrix calculations and natural display to 7400GII

What's your current OS version ?

(system / F4)

(system / F4)

- Raafat
- Junior Member
**Posts:**6**Joined:**Tue Jan 10, 2017 12:27 pm**Calculators:**Casio fx-7400GII, Casio fx-7400GII (SH4)

### Re: Add matrix calculations and natural display to 7400GII

critor wrote:What's your current OS version ?

(system / F4)

Ver 2.04.0701

What difference does it make?

- critor
- Member
**Posts:**43**Joined:**Wed Jul 24, 2013 3:33 am**Calculators:**Casio fx-7400GII (SH4), Casio fx-9750 G II (SH4), Casio fx-9860 GII SD, Casio Classpad 330, Casio Classpad fx-cp400, Casio fx-CG 50

### Re: Add matrix calculations and natural display to 7400GII

Ah, sorry then - it's impossible on your version.

You need version 2.00-2.01.

A version 2.02-2.04 means your calculator is using an SH4 CPU.

The fxRemote flashing tool doesn't support fx-7400GII calculators with the SH4 CPU.

And anyway, fx-9750/9860GII SH4 images are bigger and won't fit in your 2MiB ROM.

You need version 2.00-2.01.

A version 2.02-2.04 means your calculator is using an SH4 CPU.

The fxRemote flashing tool doesn't support fx-7400GII calculators with the SH4 CPU.

And anyway, fx-9750/9860GII SH4 images are bigger and won't fit in your 2MiB ROM.

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