SIM card: Is the SIM card locked?
- Open the settings via the Windows menu
- Select the Network and Internet item.
- Select Mobile Communications.
- Now enter the PIN of your SIM card. Then tap Next (B).
Data usage: Has the data traffic volume been all consumed?
- Open the Settings via the menu.
- Select the "Data usage" item.
- You can display the data used here and compare it with the booked data volume.