Ensure you are uploading the raw binary file, not the compressed ZIP archive. Post-Update Optimization Tips
You will need the specific firmware stock ROM package, the USB drivers for the device chipset, and the flashing software (such as Qualcomm Flash Image Loader - QFIL or ASR Upgrade Tool ). Ldw931 Firmware Update
Look at the sticker underneath the dongle’s plastic cover. Ensure your device matches the exact version of the firmware file you download. Ensure you are uploading the raw binary file,
Flashing firmware on the LDW931 requires a Windows PC, a data-capable USB port, and the correct flashing utilities. Step 1: Backup Current Configuration a data-capable USB port