My Dell Studio XPS 16 was working fine with OS X. I charged it as I have done so many times. Now when I boot I get an error system canot recognize or find the battery. Without the power adapter plugged in it will not work at all. I take the battery off and then the system boots fine but shuts down sometimes. scontobatteria.com/dell-studio-xps-16.html .I have read that I need to flash the bios which is AO6. Any ideas on how to correct this. I can see if the battery was failing but it shows 0% while the adapter is plugged in.