Hi, I am running the same bios (.216) with an n56vz-p4364 laptop. I have the same battery red blinking problem, the fans goes to max, and I never tried the usb connection power charging. But adding acpi_osi=Linux doesn't resolve anything, I resolve powering off, removing and re-adding battery. But some after time the problem come back again. I have dual boot, and I have the same problem on my winzoz 7 pro x64 (downgraded), as my ubuntu 12.10 amd64, so I think is a bios problem. In this moment I have ac connected, but the battery isn't charging, 5% always...
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