Have the USB cable being tested and must unfortunately again send back. My Stick LTE Huawei 3276 so not working. The stick is indeed powered (LED), but it is not recognized by any device. Does neither the router nor the notebook. To exclude a defect, I tested the USB cable to a USB 2.0 Stick 32GB and is recognized by the operating system immediately.
For LTE stick but unusable, so unfortunately only one star, sorry.