Service-Portal

If an app wants to access data and functions outside of its own area, it needs the permission of the system. Android differentiates between "normal&quo...

The SMS center or also called "SMSC" ensures that an SMS finds its way from one mobile phone to another. Basically, it is a kind of router that de...

Your SIM card is locked with a PIN (personal identification number) so that an identification code is required for phone calls and the use of mobile data. T...

If you want to make an anonymous call and do not want to leave your phone number, you can block your number. 1. Open phone app 2. Click top right ...

Gesture navigation is a new feature that comes with the update to Android 10. On our devices the gesture navigation is configured, but it is possible to swi...