HP 39gII UnFreeze

When Windows 7 or even OSX freezes, you know what to do (well, fans of the IT crowd will just turn it off and on again).

Well, all graphing calculators are computers running software and well, it crashes very occasionally and sometimes freezes the machine. Don’t be alarmed, this is the simple procedure to get your HP39gII going again if it freezes on the logo screen at startup:

HP39gII UnFreeze Procedure

1.       Remove batteries

2.       Replace batteries with new (or just replace if you are convinced batteries are good)

3.       Hold down the Backspace key

4.       While holding the Backspace key down, press the ON key

5.       Keep holding the Backspace key down until you get past the HP splash screen

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