Update your
AndroidManifest.xml
 file to enable a larger heap size and to enable the needed permissions for the Default UI. Enabling a larger heap size is required in order to accommodate situations in which an update of your terminals is required, and for which larger chunks of data are requested and transferred.
WARNING
Do not enable automatic backup in your app's
AndroidManifest
 file. The Tap to Phone Android SDK uses the Android Keystore to install and store cryptographic keys in your app. Using automatic backup restores the default encryption preferences and causes a functionality error in the Tap to Phone Android SDK.
Follow these steps to update your
AndroidManifest.xml
 file.
  1. Set the
    android:largeHeap
     parameter to
    true
    .

    ADDITIONAL INFORMATION

        <application
      [...]
      android:largeHeap="true">
        [...]
    </application>
  2. Enable the needed permissions for the Default UI.

    ADDITIONAL INFORMATION

    <!-- Needed for Default UI !-->
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>