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Connect & transfer
• Internal storage: In addition to your media files, you can 
store downloaded apps and games. The SD card acts as an 
extension of the internal storage of your phone. 
After you have inserted a SD card into your phone, you will be 
prompted to select either portable or internal storage. 
To manually set your SD card to internal storage tap Apps   
>  Settings > Storage & USB, then select your SD card and 
tap Menu  > Settings > Format as internal.
Caution: If your SD card is set to internal storage, it is 
formatted and encrypted to protect your information. If you 
want to use it as portable storage, or in another device, you’ll 
need to format it. Before doing so, please remember that 
formatting erases all the data stored on your SD card. 
Tip: Use a Class 10 memory card.
Note: Your phone supports memory cards up to 128 GB. 
Mount or unmount memory card
To mount a memory card, simply put it into your phone (see 
“Put in the cards & power on”). 
To unmount your memory card (so you can take it out of your 
phone), tap Apps   >   Settings > Storage & USB > SD card 
> Unmount. 
Caution: Do not remove a memory card while your phone is 
using it or writing files to it. 
Erase memory card content
To delete all the information (music, photos, and files) from 
your memory card, tap Apps   >   Settings > Storage & 
USB
 > SD card > Erase.
Virtual Private Networks (VPN)
A VPN lets you access files on a secured network (like an office 
network with a firewall). Contact the network administrator to 
ask for VPN settings, and any additional apps or other 
requirements.
To enter VPN settings, tap Apps   >   Settings > More 
> VPN. Tap   to add a new VPN. Choose the type of VPN and 
enter settings from the network administrator. The network is 
stored in the VPN list so you can select it whenever you need to 
connect.
Mobile network
You should not need to change any network settings. Contact 
your service provider for help.
To see network settings options, tap Apps   >   Settings 
> More > Cellular networks.
To switch networks, tap Apps   >   Settings > More 
> Cellular networks > Network operators and tap a network.
Note: Your phone supports most networks. Contact your 
service provider for help.
Connect & transfer
   Quick start: Connect & transfer
   Bluetooth wireless
   Wi-Fi networks
   USB cables
   Share your data connection
   Data use
   NFC
 Your cloud
   Phone & tablet
   Memory card
 Virtual Private Networks (VPN)
   Mobile network
   Airplane mode