please check below code it will solve test device issue.
please add code in android manifest file.
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="tealivepx" />
</intent-filter>
THis neds to be add in main activity oncreatre() function.
Hansel.pairTestDevice(getIntent().getDataString());
<meta-data
android:name="SMT_APP_ID"
android:value="0972a40d42ba70e6aad8edc4029a0dc8"/>
<meta-data
android:name="HANSEL_APP_ID"
android:value="7UBRLFGOL99G6MR3T0KCXGJHB" />
<meta-data
android:name="HANSEL_APP_KEY"
android:value="5D87NPTJWNGNJN7IZ3DDIGQC828NFF9J1LQOO6I2JN39YPJEVG" />