The firmware may have wiped your IMEI data. Use an IMEI repair tool to write the original IMEI number found on the physical sticker of your dongle back onto the device. Where to Find Free Firmware Safely

Ensure your laptop or desktop has a stable power source. A shutdown during flashing will brick the device.

Flashing firmware carries a small risk of bricking your device if done incorrectly. Prepare your workspace by completing these steps: 1. Identify Your Chipset

Follow these steps carefully to flash your generic Qualcomm-based 4G Ufi dongle using QFIL. Step 1: Boot the Dongle into EDL Mode Remove the SIM card and micro SD card from the device.

What is the printed directly onto your internal circuit board?

Always backup your existing NVRAM or EFS partitions if the flashing tool allows it. These partitions hold your unique IMEI and network calibration data.