General and service information:

--> Tap on Application screen - Settings - About phone.

On this screen, you will find information on the hardware and software used for your telephone. This information may be relevant in case of servicing, e.g.: Model number, Android version, Baseband version, Kernel version, Build number.

Check and update firmware:

You can check whether the firmware on your telephone is up to date and download a new ­version if necessary.

--> Tap on Additional system updates.

If the Your firmware is up to date notification is displayed, your handset is up to date. You can use Check now to check whether the firmware is up to date at any time.

If there is a more up-to-date version, it is displayed here.

--> Tap on Update. --> Tap OK once the charging procedure is complete. --> Install.

The telephone is restarted after installation.