Hi in this video, I am going to show you how to install Guam on your device step.1 go to this website to download Guam APK file link is available in the description below step 2. If you don't know your device supports camera 2 API or not. You can check from here step 3 clicks on Guam APK to download the APK file step 4 after that download the Guam config file. You can skip this step if config file is not available for your device step.5. install the Guam APK file, step 6. , create new folders and copy the config file into the folders first create Guam folder in your internal storage then create two folders into Guam folder configs and config 7.
Copy and paste the config file into both folders step, 7, open, google, camera and click here to load the config file. That's it! You have successfully installed Guam on your device, enjoy here's some comparison between stock camera and Guam photos me you.
Source : Smartphone Upgrade Guide