If you see the Pop-up message – License checked to fail, please check the following guidence.
1. If you change your ID and it’s not the same as the purchased account in Google Playstore,
the license fail message is displayed.
You need to add your puchasing account on your phone.
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.