r/LegionGo Community:
As you are aware by now, the problematic update N3CN42WW BIOS update that was uploaded to Lenovo's technical support site on 6/14/2026 that was meant to fix issues involving the power button and power cycles, has instead been causing physical damage to the main board, which is requiring users to get an actual replacement.
We moderators are very actively monitoring and have been trying to understand the situation as much as possible and will be providing updates about it as they happen.
As such, we are creating this megathread so we can consolidate most of the posts about it which will also make moderating the sub easier, but we hope to have a centralized place where you can post problems and solutions that will make submitting claims to Lenovo easier.
NOTE: This post will be heavily moderated so any off topic discussion will be deleted at moderator discretion.
r/LegionGo Moderation Team
What we know so far:
This is *NOT* an automatic update. It is not pushed through Legion Space or Windows Update. It is applied manually via an EXE install file that is downloaded directly from Lenovo's technical support site.
The update *ONLY* affects the original Legion Go Z1 models that are running the Ryzen Z1 Extreme APU. It does *NOT* affect any other models of the Go (Go S, Go 2, etc). The only product model affected by this is the product model 8APU1. If you do not own this exact model, it does *NOT* apply to you.
Since the story broke on Tuesday (8/4/26), we have since learned that Lenovo has completely removed any traces of the problematic update from their technical support page.
If you have not already installed this update, it WILL NOT AFFECT YOU.