If you use a Huawei Smartphone, you can set the Data Transfer Limit at the Phone Manager App which disconnect the mobile data transfer if the Limit is reached.
But if you want to disable it there is NO RESET OPTION!
This can run you into trouble cause the App disable the Mobile Data Modem (LTE) for data transfer daily by Automatic!
To Reset it go:
- go Android Settings > App Manager
- go Phone Manager App (Telefonmanager App) and press delete Data Button right
- press Stop the App now
- now the Settings from last Travel are gone!