142
Lock SIM card:
Activate or deactivate the PIN lock to
require PIN before accessing the SIM card.
Change SIM PIN:
Change the PIN used to access the
SIM card.
Make passwords visible:
Display passwords as you enter
them.
Device administrators:
View or deactivate apps you have
authorized to be device administrators.
Unknown sources:
Check this option to permit installation
of apps from sources other than the Play Store.
Verify apps
:
Check this option to disallow or warn before
installation of apps that may cause harm.
Trusted credentials:
Display trusted CA certificates.
Install from SD card:
Install certificates from the memory
card.
Clear credentials:
Delete all certificates.
Language and Input
Language:
Select a language and region for your system.
Spell checker
: Select spell checker and change its