Legitimate, open-source or commercial tools used by developers to visualize system architecture. These tools (like UMLet or UML Designer ) are safe but are not used for repairing mobile phones or bypassing security.
However, your specific request mentions alongside terms like Qualcomm , MediaTek , and ADB . This combination suggests you are looking for one of two very different things:
You might be referring to a specific "all-in-one" utility used for Qualcomm and MediaTek chipsets to perform tasks like flashing firmware or using ADB commands.