Ensure the device populates under Ports (COM & LPT) as SPRD U2S Diag or Unisoc Flash Device without an exclamation mark.

To ensure your computer correctly recognizes the UMS9117 chipset for service tasks, you should use official or widely-vetted SPD (Spreadtrum) USB drivers.

Installing these drivers is a fundamental step for several advanced tasks:

If your OEM never updates, the community will continue to reverse-engineer and improve.

The neon hum of the "Silicon Valley East" tech labs in Shenzhen was usually a low-frequency buzz, but tonight, it felt like a funeral.

If you are frustrated with your current setup, here is the verdict:

This is the most critical and problematic driver. The GPU is a PowerVR Series8XE. Unisoc does not write this driver; they integrate a binary blob from Imagination Technologies.

For the best results on Windows 10 or 11, follow these steps to ensure a clean installation: UNISOC UMS9117 SoC - Desktop Cellular Phone