Before you can use qcdma-tool , you typically need to install it on your system. The installation steps can vary depending on your operating system. For Linux distributions, it might involve compiling the tool from source or using a package manager.

: Downloading tools like these from unofficial sources (e.g., Google Drive links) carries a high risk of malware .

Symptom: Your phone lacks LTE Band 12 or Band 71, even though the antenna supports it.