Few comments after reading Wiki

[Marcin Wiacek]

> Per-block protection is tricky. There are only very few 
> companies out there who have chips with this, and even fewer 
> whose chips we could actually use. I don't know of any Flash 
> chip with useful zone protection (you get a lot that protect 
> about 16 kB, but that's not enough). Just protecting the 

OK

> whole chip won't do, since we expect our users (hackers) to 
> install their own boot loaders, kernels, and such.

No, no, no. You install microswitch available under battery (available for
end user). When Off, you can not save anything to chip number 1 (you
disconnect phisycally lines required for changing chip content). When on,
you can save to chip number 1. All stuff like user disk, etc. Etc. goes into
chip number 2 (you can always change it). Simple. 

Can be done something like that (I'm not hardware guy) ?

Pozdrowienia/Best Regards
--
Marcin Wiacek (www.gammu.org, www.mwiacek.com, I'm looking for a job)