So, today I got told that Lenovo had released a new BIOS, which (I am rather sad) got me quite excited…. Maybe they've fixed ACPI brightness control, or allow me to resume from suspend, or just added the battery current voltage patch I sent to them a few months ago.
No, Version 3.0 (third major release) just bumped the OEM revision header (in the AML header) from 51 to 52. No other changes.
Wow, thanks Lenovo. Just remember kids, Lenovo doesn't support Linux.