Installation process:
OBB files contain additional game data that some apps require to function properly. Not all mods include OBB files, but when they do, follow these steps:
What you need:
The OBB file(s)
The MOD APK file
A file manager app
Steps to follow:
Download the OBB file(s) and MOD APK.
If OBB is in a ZIP file, extract it.
Using your file manager, go to: Android/obb/[package code]
Example: For CSR Racing 2, go to Android/obb/com.naturalmotion.customstreetracer2
Move the OBB file(s) to this folder.
Install the MOD APK
Launch the app and enjoy!
Note: If you get an error saying the OBB file cannot be copied, try a different file manager app or transfer the file using a PC or Mac.
Starting with Android 11, Google restricted access to the Android/obb and Android/data folders. The easiest workaround is to use a file manager app, but some work better than others, so you may need to try a few.
If your device is rooted, you can access these folders without restrictions.
You can also connect your phone to a PC or Mac with a USB cable and access the obb and data folders through the computer's file explorer.
Need Help?
For detailed troubleshooting, check out the OBB installation guide: Step-by-Step OBB File Installation Guide
Unsigned APKs require rooted devices with signature verification patches. I won't provide these most of the time since they are only available on specific setups.
Requirements:
Rooted device
Signature verification disabled (using tools like Lucky Patcher or Xposed)
Installation:
Download the unsigned MOD APK
Install directly over the original app (no uninstall needed)
Launch and enjoy
Note: If installation fails, your signature patch isn't working correctly.
Unlike signed mods, unsigned versions allow:
Google login without issues
Facebook login with the app installed
In-app purchases that function normally
Need help patching your rooted device? Check this guide for detailed instructions: Follow this video: Video tutorial How To Login With Google Or Facebook App On Modded Games