Dopo EM63 User Manual page 17

Device administrators -
DEVICE
ADMINISTRATION Unknown sources-When activated,allows the downloading and installation of
'unknown', non-markt(e.g.,Google Play) Apps.
(Advanced Users)
Trusted credentials - Shows all Trusted credentials .
CREDENTIAL
STORAGE Install from SD card - Allows a credential to be installed via SD card.
Clear credentials-Removes all credentials.
(Advanced Users)
SLEEP AND AUTOMATIC LOCK
Unless otherwise set, the tablet will go to sleep, and automatically lock, after a preset period of time.
The Sleep function can be set by going to Settings, and the to Display and selecting Sleep in the right
side menu. The tablet can be set to sleep after 15 seconds to 30 minutes of inactivity, or not at all.
The screen lock is determined by the Screen Security setting(see above.)
POWER BUTTON INSTANTLY LOCKS
When screen security is active, the tablet will lock after the Power button has been pressed, and the
screen has gone to sleep.
Tablet Security
.
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