[maemo-developers] is wireless modem tivoizated?

[From: DmitryTurin.narod.ru]

Ok, let's separate modem's CPU, ROM, flash, OS, etc
and phone's CPU, ROM, flash, OS.

So external wireless USB-modem for computer
has no any phone's CPU, ROM, flash, OS. Right?


How are these USB-modems locked to use SIM of
only one cellular provider?


If in ROM of modem, than how are hackers unlock
these modems to use with any SIM?
And as i understand, hackers unlock programmably,
i.e. without exchanging hardware.

>the ROM is obtained on the same chip implementing the modem

So there are not two identical chips? It is not technologically, so probably ROM is outside chip.

>HW (both SoC and PWB)

If it is possible, more details about it