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Getting french Graph 35+E image

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Calculators: Casio Afx 1.0, Casio fx-9860GII, Casio fx-CG50

Getting french Graph 35+E image

Postby cakeisalie5 » Mon Sep 05, 2016 1:44 am

So some people wanted to backup their Graph 35+E (fx-9750GII adapted to stupid french law) OS 2.09 image or gathering it for further analysis, and I created this topic to try some ideas.

If I understood well, the situation is the following :
- the protocol 7.00 function that allowed to copy OS image was removed ;
- add-ins cannot be run on this OS ;
- we have nothing to read flash memory directly.

So what's left to gather OS image ?
- try to find a fault in like Basic interpretation or stuff that allows to run arbitrary code ;
- use OSUpdate for this.

So about OS Update, I wanted to know if I understood well the situation : the updating kernel was gathered from Casio and can be adapted to flash anything on the ROM but that's all, we haven't got any access to some source or nobody has ever made something functional enough to run with OS Update and send back OS image ? (based on this)

Do we know if uploaded kernels have to fullfill some conditions (apart from "not depending on syscalls" (obviously) and "has to restart") ?
Part of the Planète Casio community (FR) - main author of Cahute

Senior Member
User avatar
Posts: 101
Joined: Sun Mar 27, 2016 10:24 am
Location: France
Calculators: Casio Afx 1.0, Casio fx-9860GII, Casio fx-CG50

Re: Getting french Graph 35+E image

Postby cakeisalie5 » Mon Sep 05, 2016 11:43 am

I've been answered here ^^
Part of the Planète Casio community (FR) - main author of Cahute

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Posts: 100
Joined: Sun Mar 24, 2013 12:01 pm
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Re: Getting french Graph 35+E image

Postby TeamFX » Mon Sep 05, 2016 7:01 pm


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