The second one is much simpler because it provides an already patched and compiled ipw2200 driver required to do the job.
Instruction for intel 2200/2915 cards are here or here or here (in German).
It also has links on how to edit the PCI-ID on Intel Pro Wireless cards. This page is for Atheros-based cards and HP notebooks, but it applies to Thinkpads as well. The instructions are here (link down, 4 - mirror here, second mirror here). This does not make the wireless card work, but it may allow you to boot the computer normally.Ī safer and better method than modifying the BIOS is modifying the PCI-ID of the wlan card to match the authorized one: Press F1 to enter the BIOS and deactivate the WLAN card, then attempt to boot with the card disabled. It may be possible to use the computer with the unauthorized card deactivated (but not removed). Any of the following solutions should suffice to make the wireless card useable.
