Casio FX-9860GII - SOFTWARE VERSION 2-00 Hardware User's Manual - Page 13

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Casio FX-9860GII - SOFTWARE VERSION 2-00 Hardware User's Manual

4. Restart and Reset

u Restart

Should the calculator start to act abnormally, you can restart it by pressing the RESTART

button. Note, however, that you should only use the RESTART button only as a last resort.

Normally, pressing the RESTART button reboots the calculator's operating system, so

programs, graph functions and other data in calculator memory is retained.

Important!

The calculator backs up user data (main memory) when you turn power off and loads the

backed up data when you turn power back on.

When you press the RESTART button, the calculator restarts and loads backed up data.

This means that if you press the RESTART button after you edit a program, graph function,

or other data, any data that has not been backed up will be lost.

u Reset

Use reset when you want to delete all data currently in calculator memory and return all

mode settings to their initial defaults.

Before performing the reset operation, first make a written copy of all important data.

For details, see "Reset" (page 12-3) in the separate Software User's Guide.

5. Power Supply

This calculator is powered by four AAA-size (LR03 (AM4)) batteries.

An icon in the upper right corner of the Main Menu screen indicates the current battery level.

Replace batteries as soon as possible whenever

RESTART button

fx-9860G

fx-9860G AU PLUS

fx-9750G

fx-7400G

(Level 1) is indicated.

E-9

Level 3

Level 2

Level 1

Dead