fopen() worked. It's just no files are bundled as-is in an APK. Files must be embedded into a resource-like asset file which could not be opened by fopen(). If

fopen() worked. It's just no files are bundled as-is in an APK. Files must be embedded into a resource-like asset file which could not be opened by fopen(). If a library your app linked to had to call fopen() and other POSIX file APIs for these files, you were f*cked up and ended up unzipping files.