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» Online Classroom   » Tech Support   » StarPilot   » Removing SP-89 battery while program running

Author Topic: Removing SP-89 battery while program running
David Burch

 - posted June 23, 2003 02:04 PM      Profile for David Burch           Edit/Delete Post 
In the StarPilot-89, the program is stored in ROM, so if you should remove any one of the main batteries the program will be safe. How you happen to remove the batteries, however, will affect how you proceed when the battery is replaced.

If you remove a battery when the calculator is off, which is of course the recommened way to do it, then nothing special occurs. Battery out, battery in, and all is as before.

But if you should remove a battery with the StarPilot program running -- something you should not in general ever have to do -- then if you put the battery back in the calculator immediately, the program will appear to have been locked up... ie no keys do anything.

The solution is, take the battery back out and leave it out for 5 minutes, then put it back in, and the calculator will reboot itself. You will have lost StarPilot from RAM, but it will still be in ROM.

To move from ROM to RAM, follow instructions given in that tech support note.

From: Starpath, Seattle, WA

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