ProScan PLT4315 User Manual page 20

Screen security：
（1）screen lock：Choose the unlock mode using when screen lock.
（2）owner information: Set the owner's information which displayed when the screen
lock.
Encryption：
Set the number PIN or password which you need input to decode the tablet each time.
SIM card lock：Set SIM lock.
Password：Set whether display characters when you input password.
Device administration：
（1）Device administrator: View or deactivate device administrators.
（2）Unknown sources: This option setting permits to install the applications which
don't purchase from Android market.
Evidence storage:
（1）Confidential evidence: Display confidential CA certification.
（2）Install from SD card: Install certification from SD card.
（3）Clear evidence: Delete all certifications.
Language and input
Ver 1.0
KSD4302User Manual
Page 19