Power Saving Mode
When enabled, your device automatically analyzes the screen and adjusts the brightness to conserve battery power.
1.From a Home screen, touch 
➔ 
Settings ➔ General tab ➔ Power saving mode.
2.Touch the OFF/ON button to turn the feature
ON 
3.Turn Power saving on and touch the Power saving mode settings (CPU performance or Screen output) to enable or disable them.
4.Touch Learn about power saving to display more information about conserving power.
Storage
View the device memory and usage, or mount, unmount, or format an optional memory card (not included).
Device Memory
From a Home screen, touch 
➔ 
Settings ➔ General tab ➔ Storage. The Device memory displays
as Total space, System memory, Used space, Cached data, Miscellaneous files, and Available space.
SD Card
Once a memory card has been installed in your device, the card memory displays as Total space and Available space.
Mounting an SD Card
When you install a memory card, it is automatically mounted (connected to the tablet) and prepared for use. However, should you unmount the card without removing it from the tablet, you will need to mount it before it can be accessed.
1.Install an SD card. For more information, refer to “Installing a Memory Card” on page 8.
2.From a Home screen, touch 
➔ 
Settings ➔ General tab ➔ Storage.
3.Touch Mount SD card.
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