Yezz BILLY 4.7 Manual Del Usuario página 82

Insert a Memory Card (optional)
Use a storage card to store additional photos, videos, music, and more.
Your phone supports memory cards up to 128 GB MicroSD cards.
Formatting the memory card on a PC may cause incompatibility with your phone.
Format the memory card only on the phone.
To insert the memory card:
•
Remove the battery cover.
•
Insert a memory with the
label side facing up.