Zte Z557BL User Manual page 57

Camera (PTP): Transfer photos using camera software.

NOTE: To make your phone connect to the computer
automatically using the selected connection type, check Don't
ask me again.
Disconnecting Your Phone From the
Computer
To disconnect the phone from the computer, simply unplug the
USB cable when you're finished.
Setting Up the microSDHC Card as Portable
Storage
When you install a microSDHC card that has not been used on
your phone before, the phone will mount the card as portable
storage by default.
Removing the microSDHC Card From Your Phone
If you need to remove the microSDHC card while the phone is on,
you must unmount it first.
1. Press the Home Key >
2. Tap next to the SD card name in the Portable storage
section.
NOTE: Before ejecting the card, ensure that you have moved
data and apps to the internal storage.
When the SD card's state is Ejected, you can now remove it
3.
from the phone.
> Settings > Storage.
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