Turn off Wi-Fi and mobile data. Launch Asphalt 7 Heat. The game should skip the license check and load directly from the SD card.
If you are using an extremely old device (Android 2.3 to 4.0), the game might look for data in a Gameloft-specific folder: gameloft/games/asphalt7/ Technical Specifications for v1.0.4 Approximately 1.2GB to 1.5GB after extraction.