How to find the real manufacturer of my device? Often when we buy phones in contract or otherwise, the vendor company puts its own logo and branding on hardware as well as firmware.

Is there a method to help determine the real identity of a device to root it and perform other functions?
One tool that came to mind, is CPU-Z.


  Description
  
  Android version of the popular CPU identification tool for PC, CPU-Z
  is a free application that reports information about your device.
  
  
  SoC (System On Chip) name, architecture, clock speed for each core ;
  System information : device brand &amp; model, screen resolution, RAM, storage.;
  Battery information : level, status, temperature, capacity ;
  Sensors.
  


Permissions :


INTERNET permission is required for the online validation
ACCESS_NETWORK_STATE for statistics.