Zte N9137 User Manual page 66

NOTE: Whenever you move data between the internal storage
and the microSDHC card, the destination is used to save new
apps and personal data (such as photos and videos) and only
the destination is accessible from a computer.
To remove the microSDHC card from your phone:
If you need to remove the microSDHC card used as device
storage while the phone is on, you must unmount it first.
1. Swipe up from the bottom of the home screen and tap
Settings > Storage.
2. Tap your SD card name below Device storage.
3. Tap Remove SD card.
NOTE: Before ejecting the card, ensure that you have
moved data and apps to the phone.
4. Tap EJECT.
5. When the screen prompts the card is safely ejected, you
can remove it from the phone.
To reformat the microSDHC card as portable storage:
If you no longer want to use your microSDHC card as device
storage, you can reformat the card as portable storage.
NOTE: Before the formatting, ensure that you have moved
data and apps to the phone.
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