It is important to understand that It is often a generic USB Vendor ID (VID) or Product ID (PID) used by various Chinese manufacturers (such as Zepee, Thinkwill, or Unisoc-based devices) producing white-label LTE modems. These dongles are often re-branded by smaller distributors, meaning two dongles looking identical on the outside might have different internal chipsets.
If the dongle is attached to an OpenWrt router: 4gdong001 Firmware