I'm posting this to warn other Legion Go owners before installing BIOS version N3CN42WW.

I bought a Lenovo Legion Go 1 and effectively had a working device for one hour before the updates installed.

Immediately after installing the official and still downloadable (!) Lenovo BIOS update, my Legion Go became completely unusable:

* Black screen after BIOS Update reboot
* No boot at all
* Only the power button and controller LEDs were on

I followed Lenovo's instructions carefully:

* The original charger was connected the entire time.
* I did not interrupt the update.
* After the screen went black, I waited for hours before attempting a restart because I assumed the BIOS update might still be running.

Unfortunately, it never recovered. Crisis mode and external display adapter didnt work.

I contacted Lenovo support and sent the device in for repair. To my surprise, Lenovo classified it as a chargeable repair (warranty recently expired) and sent me a repair quote for €237.16, even though the issue occurred immediately after installing their official BIOS update!!

I know not everyone experiences this problem, but after searching Reddit I found that I'm clearly not the only one who has had a Legion Go brick after updating to N3CN42WW.

If you're thinking about updating to BIOS N3CN42WW, I would personally recommend waiting until Lenovo addresses these reports.

Lenovo Legion Go BIOS Update N3CN42WW bricked my device – Repair quote: €237.16