Re: Solution to the "1802: Unauthorized network card" problem in recent thinkpad systems

From: Vojtech Pavlik
Date: Sun Jun 13 2004 - 15:08:04 EST

On Sun, Jun 13, 2004 at 12:10:29PM -0700, Tisheng Chen wrote:

> Somebody did succeed with a X31.
> As I know, it should works for T30,R40,X31,R40E at
> least.

Indeed, this version:

#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/stat.h>
#include <fcntl.h>

int main(void)
int fd;
unsigned char data;

printf("Disabling WiFi whitelist check.\n");
fd = open("/dev/nvram", O_RDWR);
lseek(fd, 0x5c, SEEK_SET);
read(fd, &data, 1);
printf("CMOS address 0x5c: %02x->", data);
data |= 0x80;
printf("%02x\n", data);
lseek(fd, 0x5c, SEEK_SET);
write(fd, &data, 1);

worked just fine, and the notebook no longer complains about an
unsupported WiFi card! Now if I only can get the card to enable the
transmitter/receiver. It's a Compaq Atheros card inside an X31 notebook.

Vojtech Pavlik
SuSE Labs, SuSE CR
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