Installing Plants vs. Zombies version 6.1.11 on Android involves a two-step process: installing the APK file and manually placing the OBB (Opaque Binary Blob) data file in the correct system directory. Internet Archive Installation Instructions
Step 1: Isolation
Permissions & app behavior
Prepare the OBB Folder: Using a file manager, navigate to your phone's internal storage: Android/obb/. Create a new folder inside named exactly com.popcap.pvz_row.
How to do this: