Think of all the music you've collected on your phone over the years. All those thousands of pictures and videos, your favorite games, the apps you can't live without, not to mention your contacts and emails. You've got a lot of data on your phone. Let's talk about relocating it, so it's ready and waiting to be transferred to your new phone.

Backing up

Backing up your ZTE Grand X Max+™ makes it possible to transfer your old data to your new phone.
Before you start: Make sure to save and close your files before copying them from your phone to your computer.
Backing up your contacts
• From your phone's home screen, select Contacts
• Select on the bottom of the right of the screen.
• Select Import/Export
• Select Export to Storage
• Confirm that you want to export contacts by selecting OK 

Backing up Media & Pictures
• Using a USB cable, connect your phone to the computer, then follow one of these steps depending on your computer:

Using Windows:
• An AutoPlay window will appear shortly after connecting to the computer.
• Select Open Device to View Files

Using Mac:
• Select Virtual Drive on the desktop.
• Drag and drop the desired file from the internal storage onto your computer.
Keep in mind: Make sure to select the contacts that were exported earlier.
After you’ve finished backing up the files you want to keep, follow one of these steps depending on your computer:

Using Windows:
• Select Safely Remove Hardware in the system tray in the lower right-hand corner of your computer desktop

Using Mac:
• Drag and drop Virtual Drive icon into Trash/Eject
Once the computer notifies you that it's safe, disconnect the USB cord from your computer.