Someone created a registry file that adds the resolutions 1680×1050 and 1440×900 to the Legion Go. A similar tweak for 900p was popular in the ROG Ally community and ASUS officially added it to the Ally in their latest BIOS update. More resolutions give us more options to find the best settings for each game.
How To Create A 1050p & 900p Resolution On The Legion Go
Download the registry file on your Legion Go by clicking here.
Extract the file and click it to run it. Click Yes when asked if you want to continue.
The registry will now be added. You can restart your Legion Go now.
Your available Legion Go resolutions in your display settings and game should now be 2560×1600/ 1920×1200 / 1680×1050 / 1440×900 / 1280x 800.
Note: If you select 1050 or 900p it will show as 1280×800 in the Legion Space quick menu, you can ignore that.