I do BIOS updates by booting FreeDOS from a CD or USB flash drive, with the manufacturer's BIOS file and DOS utility on another USB flash drive. FreeDOS will assign a drive letter to each USB flash drive that's installed when booting. You can change to the appropriate drive and run the DOS-based BIOS update program. That said, I suspect that a BIOS update won't address your problem. I would not expect a BIOS update add the ability to disable the wireless adapter, althtough it is possible. The only other option would be to open the case and physically remove the adapter. That's easy on some laptops; harder on others. I'm not totally convinced, yet, that your USB adapter is properly identified. The ID numbers in your lsusb output are different from mine, and different from the values I've seen for that adapter on web sites that have Linux wireless info. I think that the only way to know for sure whether you can control the USB adapter is to disable the built-in adapter.



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