Sorry to hear about that. Just as an FYI, I also am using an Intel 5300 on my Aspire One. I made sure to not allow windows to try and install drivers. I first installed the Intel PROSet/Wireless WiFi Connection Utility which is supposed to include drivers, however, to make sure that the drivers were the most current, I installed the 5300 driver pack anyways after the software installed. After the installation was complete I restarted my PC. And the wireless worked right away, I don't even recall windows even asking me to install drivers for my new hardware.
Intel seems to have updated their drivers on 11/24/2008
http://downloadcenter.intel.com/filter_ ... bmit=Go%21
I wish there was more I could say, I have an AOA150-1049 and have not done any bios updates since I purchased it. I just got tired of my Atheros wireless card crapping out, so I decided to do the intel upgrade. Plus I was planning on getting a good wireless N router to add to my network this last black Friday weekend, (49.99 + tax, yay).
I didn't follow the posted installation instructions on the message board to a "T", I ended up leaving the monitor intact and only installed a new antenna for the center card connection which I ran between the black & white wires and taped off close to the upper corner of the hard drive. (I just had an older wireless scrap router that I took the antenna connector from and used that.). My brother is an EE, and I might ask him if the way the internal antennas' were connected could be causing your problems, I'm just a computer tech, I know that the error code your getting is either a hardware or driver failure. Considering my model of the aspire one, I know that the intel chipset supports the 5300 card, that limits your concerns to the driver installation, the actual hardware installation, or the hardware itself (perhaps a bad card?).
I never found anyone posting that the 5300 did in fact work, so I hope some of this helps,
- Josh
