Re: Locking a 83
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Re: Locking a 83
By the way today 2 of them were locked up with a Black screen with the
contrast turned all the way up. Keypresses were useless. However,
simply taking out a battery and reinserting it reseted them, and they
appeared fine. All of them I have examined seem to be rom 1.007 or
something along that line.
Todd
ToddEStan wrote:
>
> Well I did press on. Unlike my 85, over a full 20 secs was needed to
> clear the memory. Usually just a couple of seconds will wipe my 85.
> Possibly the 83's are different?
>
> Todd
>
> Freedom wrote:
> >
> > On Mon, 28 Sep 1998 16:27:33 -0500, ToddEStan
> > <toddestn@nospam.visi.com> wrote:
> >
> > >A few days ago, a classroom set calculator (ti-83) at my school was
> > >locked up by one of the students. I decided to do the teacher a favor
> > >and unlock it. The calculator had a picture of a horse on the screen,
> > >and the busy indicator was locked up. The calculator didn't respond to
> > >any key presses. I took out a battery, and put it back in. The
> > >calculator turned itself back on, and the picture was still there. Only
> > >after I took a battery and held down ON for a whole 20 secs, the
> > >calculator said "Mem Reset". To be sure I resetted it again.
> > >
> > >What is this? A virus, or a program designed to lock a calculator, or a
> > >ti-os/basic bug (like the xstat one in the 85)? Any ideas?
> >
> > Well, one word...DUH! You are SUPPOSED to press ON to clear the
> > memory! No virus, just a bug or one-time glitch.
>
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