Re: A89: TI89 ROM vs HP49 ROM

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Re: A89: TI89 ROM vs HP49 ROM


Dux Gregis wrote:
> 
> Well, the serial number is either kept in the regular flash ROM or in
> the special flash ROM segment with the upgrade routine (part of the
> ROM that isn't changed during an upgrade).  In the first case you get
> a new serial number everytime you upgrade your ROM, in the second your
> serial number is always the same, but either way the serial number can
> be changed by employing this hack.  That may be good or bad depending
> on whether you're on the paying side or the vending side ;-)
> 
> >
> > Nah, the serial number is the serial number, the point of it is that
> it
> > doesn't change =).  If you have a plus module, your serial number is
> going
> > to be the serial number from your plus module, not the original 92.
> >
> > -Dan
> >
> >
> > >
> > > Dan E wrote:
> > > >
> > > > I'm not familiar with the specifics of the 89/92+, but on the
> 83+ the
> > first
> > > > 16k of rom is true rom, not flash, so the serial number could
> easily be
> > kept
> > > > in here...Alternetly, it could be accessed via a port as
> external
> > hardware.
> > > > Either way, they're not dumb enough to let you change the serial
> number
> > =)
> > > >
> > > > -Dan
> > > >
> > > > >
> > > > > SirKnight wrote:
> > > > > >
> > > > > > >how do you know they won't?  i don't remember ever seeing
> "free rom
> > > > > > upgrades"
> > > > > > >on their website.
> > > > > >
> > > > > > If they do then we'll just pirate them.  Oh wait, I see the
> serial
> > > > numbers
> > > > > > on the calcs work in very nicely for TI.
> > > > >
> > > > >
> > > > > If ROM can be edited so can serial numbers (right?).  I'll
> stop
> > talking
> > > > > illegal for now though.
> > > > >
> > > > >
> > > Doesn't the flash change stuff on the serial number?  I could very
> well
> > > be wrong. any one know.  I doubt TI's that stupid but it's
> possible.
> > >

I was right (wow, it doesn't happen much)  Does that mean that you could
change a serial number to whatever you want. TI really doesn't neeed to
know about this.
C2B3
References: