Firmware Xbox One S Site

To fix it, you need a PC running a specific Linux script to partition the new drive correctly, then perform an Offline System Update (OSU) via USB. Microsoft designed this to prevent piracy, but it remains the number one brick-wall for DIY repairs. While the Xbox Series X|S gets the glory for Velocity Architecture and Quick Resume, the One S firmware was the testbed. The Hypervisor technology matured on the One S. The ability to suspend/resume games (a feature the PS4 struggled with) was perfected here.

The Xbox One S might be "last gen," but its firmware architecture—specifically the separation of Game OS from Dashboard OS—is the reason Microsoft was able to offer backward compatibility so effectively. Firmware Xbox One S

I’m talking about the firmware.