If you saw the Pop-up message – License checked to fail,
you would need to check the following scripts.
1. If you change your ID and it’s not the same as the purchased ID,
The license fail message is shown.
At that time, you can add your accounts at your phone. Please refer the below link.
2. There is a possibility of a network problem.
In that case, It’s a temporary problem.
Please change your network, from 3G, 4G to Wi-fi or from Wi-fi to 3G, 4G.
3. There is a possibility of the date problem.
If you changed the date of the phone.
Please set the date to today.