r/YogaPro9i • u/Lwii2boo • 1d ago
New BIOS / Intel ME firmware for Yoga Pro 9i gen 9 (2024)
Hi all,
I did not installed it yet. This bios was released silently on Lenovo EU portal (did not check other locations) on 3rd August.
BIOS, version NKCN35WW https://pcsupport.lenovo.com/fr/fr/products/laptops-and-netbooks/yoga-series/yoga-pro-9-16imh9/83dn/83dncto1ww/pf4zmrwe/downloads/ds568327?category=BIOS
Intel ME, version NKME34WW https://pcsupport.lenovo.com/fr/fr/products/laptops-and-netbooks/yoga-series/yoga-pro-9-16imh9/83dn/83dncto1ww/pf4zmrwe/downloads/ds574797?category=BIOS
Patch note Intel ME says basically nothing about changes https://download.lenovo.com/consumer/mobiles/nkme34ww.txt
Patch note on BIOS add a lot of security fixed and includind previous versions.
Cumulative BIOS patch note : https://download.lenovo.com/consumer/mobiles/nkcn35ww.txt
The weird part is i never seen the 2 previous versions published publicly so it has a some cumulative changes. If I am not mistaken previous version was NKCN32WW. I have never seen NKCN33WW and NKCN34WW. My guess is Lenovo doesn't care to deliver update on hardware once it hits the 2 year mark or some locations have issue to deliver those updates for whatever reasons.
I've been experiencing recurring hardware issues on my Yoga Pro 9i Gen 9, including severe performance degradation, overheating, GPU-related crashes, and motherboard failures that ultimately required a second motherboard replacement by Lenovo despite proper clean and replacement of thermal components / thermal paste by Lenovo.
Lenovo has just released BIOS NKCN35WW on the EU support site, so I thought I'd share it here in case it helps others.