If you try to install that same APK on a generic Samsung or Lenovo tablet, the Launch server will reject the activation request because the hardware ID doesn't match.
Please be aware of the following:
Without a valid subscription and hardware dongle, the free APK is essentially a —it will show a demo mode at best, allowing you to see the menu but not communicate with a vehicle’s ECU or run any actual diagnostics. launch x431 pro apk free download