The No-1802 error when booting your IBM ThinkPad T30 alerts you that the Wi-Fi card in your machine isn't recognised. If your T30 BIOS dates from 2005 or earlier, you may have this problem. The simplest solution is to flash your BIOS with the 2006 BIOS version and follow that with the Embedded Controller Service update. Once those two updates have been installed, the No-1802 error should disappear from your machine.
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Things you need
- Downloaded BIOS file
- Downloaded Embedded Controller file
Navigate your browser to the Lenovo Support and Download website listed in Resources. Select "Notebooks and Handhelds" in the first drop-down box on the page, select "ThinkPad T30" in the "Family" drop-down box, allow "All Types" to stay the same, as well as "All Operating Systems Listed," and then click the "Continue" link.
Click the drop-down box next to "Refine Search" on the "Downloads and Drivers" page. Choose "BIOS" from the options given.
Download the BIOS and the Embedded Controller Program to your hard drive. Make a note of to which folder the programs are downloaded. Go to the folder and run the ".exe" programs to extract the files.
Connect the power cord to your T30 laptop and ensure the battery is fully charged. Unplug any USB devices you may have attracted to the machine.
Click on your "Start" button and select "Run" from the options.
Type the path to the "1IET71WW.exe", for instance, "C:/Downloads/"1IET71WW.exe", then click the "OK" button.
Follow all on-screen instructions. Allow your machine to reboot.
Repeat this process for the Embedded Controller Program. Follow all on-screen instructions and reboot when prompted.
Press the blue "Access IBM" button when as the system reboots. Verify that both the BIOS and the Controller have been updated by double-clicking the BIOS Setup Utility on the screen.
Tips and warnings
- On rare occasions, you may have to reinstall the Embedded Controller Update. You machine will prompt you for this.
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