Re: A89: Overwriting ROM (was Re: Linux Port)


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Re: A89: Overwriting ROM (was Re: Linux Port)




I have never used it myself, but I have seen working code, and I know people who
have used it, and I dont think it has very much of "wiz" over it..  it is quite
straight forward..  I think i posted some explanations to this list a while
ago.. I even think I posted it multiple times in different versions..  jeje..

//Olle

mhlandry wrote:
> 
> Olle, do you know how to use this bug?
>         - Matt
> 
> Olle Hedman wrote:
> >
> > yeye.. all the info you really need is at http://alh.dhs.org/ti89/ if you dont
> > understand it, you should probably not try it. I have said this before..
> >
> > //Olle - the guy noone listens to.
> >
> > S43R80@aol.com wrote:
> > >
> > > In a message dated 99-07-18 21:51:56 EDT, you write:
> > >
> > > > The secret of overwriting portions of the ROM will probably never be shared
> > > >  by those of us who know it - it's too powerful.  Wormhole (one of the
> > > French
> > > >  guys) actually DID write a successful virus, and tested it himself - he
> > > >  couldn't FLASH over his calc.  And his antivirus didn't work, so he
> > > actually
> > > >  had to go into his ROM hex editor (I want one of those =) and fix it. . .
> > > >  then again, I'm sure that he could have just screwed it up worse and sent
> > > in
> > > >  to TI to fix it =)
> > >
> > > without sharing the secret...how the hell were they able to find this bug
> > > anyway?  also how many people no specifically how to utilize it???...do you
> > > just randomly right to different addresses (definately not)...but how was it
> > > found?...perhaps it will be shared once the bug/whatever_it_is in a latter
> > > version of the rom...although i really wouldn't have much use for it...
> > >
> > > -Steven


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