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- PART XIII. EQUATIONS FOR PROGRAMMING THE CHIPS
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- In most instances, you will not be able to tell the code on a PROM
- because the manufacturer will have blown the security fuse in order to
- prevent people from obtaining the codes to reprogram their own chips.
- Therefore, it might be necessary to produce a set of equations that are
- programmed into the cip to produce a bogus ESN. The bogus chips must contain
- the first three digits of the manufacturer's code listing, which is
- consequently the first marker of the actual ESN. Experimentation might be
- necessary, but hey, isn't that half the fun?
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- With the aid of an EPROM emulator, the whole process should be able
- to be completed in under an hour - this includes pulling the chip, creating
- a new ESN, programming the chip, and replacing it.
-
- So know you're saying "Holy Cow this project is getting expensive!".
- Well it can get that way, but the long run payoff is worth it. I have seen
- both emulators and burners for under $200 (I'm not talking about those spiffy
- models that program RAM, just the basic EPROMs...in fact I can buy them for
- under $150. Same with the emulator. Just look around.)
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- I wouldn't be surprised if actual ESN data started appearing on
- boards in the near future. I know when I finsish my phone (Hopefully soon)
- I plan on U/L the ESN info somewhere.
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