This is why users typically search for a "better" driver—they are trying to fix a broken connection or squeeze more performance out of budget hardware.
Visit Unisoc’s official support portal (though obscure) or search for "UMS9117 vendor blob archive" on GitHub. Developers often extract the latest proprietary drivers from newer stock ROMs and package them for custom use. unisoc ums9117 driver better
Unisoc does not upstream most drivers. The kernel source for UMS9117 devices (e.g., from GitHub dumps) reveals: This is why users typically search for a