When powering off your fx-7400Gii, fx-9750Gii, fx-9860G or fx-9860Gii, you are shown a nice Casio logo.
This logo is in fact a BMP image included in the OS - and from now on, a new tool is going to let you overwrite that image!

You can now fully customize your Casio calculator - why not putting an image with your nick in order to prevent theft?

The BMP image has to be in 128 x 64 pixels, with 1-bit color depth.
This format is refered as "monochrome Bitmap" in some softwares, and in other softwares you just get it by setting an indexed image with a 2-colors palette.
For exemple, GIMP is able to read this format although it won't accept to write it as far as I know - but the simple Microsoft Paint everyone has with Microsoft Windows is able to do it!


And for those who won't believe in a single image, here's the video:


It might be possible to perform the same thing in color with Casio Prizm fx-CG10/20 and Casio CladdPad II fx-CP400, but I haven't investigated yet if a 3rd party OS flasher like fxRemote is available for those models.



Source & Download
http://tiplanet.org/forum/viewtopic.php?t=12785&lang=en

Looks really nice.
And probably using this way is also possible customize the icons of the menu (default apps) and apply "themes" like casio AFX.

In fx-cp400 there is a native option for shutdown images, using custom casio property images. I wrote a program to create .c2p images in basic called CPaint, but currently are only 8 colors available.
Maybe casio release in future a tool to convert images like prizm converter.


BTW: Possibility of you crosspost this at casiopeia?

This is a pretty neat discovery. Very nice work.

BTW: Possibility of you crosspost this at casiopeia?

Of course - it's done