[ltp] Solution to the "1802: Unauthorized network card" problem in recent thinkpad systems

Marius Gedminas linux-thinkpad@linux-thinkpad.org
Mon, 14 Jun 2004 10:08:07 +0200

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On Sun, Jun 13, 2004 at 12:42:00AM -0700, Tisheng Chen wrote:
> The other way is unbelievably simple. There is a byte
> in CMOS which controls whether an "unauthorized" card
> is allowed or not. That's 0x6a, actually only
> the bit 0x80. The program to unlock the authorization
> mechanism is like (asm):
> The program can be downloaded from:
>   http://jcnp.pku.edu.cn/~shadow/1802/no-1802.com
> To use this program, you need to boot to DOS.

You can access the CMOS memory from Linux by using /dev/nvram.

Marius Gedminas
Seen on a button at an SF Convention:
Veteran of the Bermuda Triangle Expeditionary Force.  1990-1951.

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